preamp tubes

preamp tubes

Yeah, i pulled the tubes cause there was something fishy going on with
this amp, i swapped the 1st preamp tube for the 3rd (im calling the 3rd
the preamp closest to the powertubes)... and the amp started doing his
high pitched sqealing worse than it ever did.

Its a marshall jtm30, the preamp tubes are 12AX7A Ruby & power are 6L6GC
rca blackplates.

Reading about these 12AX7A rubys they are a low gain preamp anyway,
which is not what i want, would some Sovtek 12AX7-WB or a Tung-Sol 12AX7
put some gain in this amp and fix my high pitched squealing problem?

Re: preamp tubes

Picasso wrote:

> Yeah, i pulled the tubes cause there was something fishy going on with
> this amp, i swapped the 1st preamp tube for the 3rd (im calling the 3rd
> the preamp closest to the powertubes)... and the amp started doing his
> high pitched sqealing worse than it ever did.
>
> Its a marshall jtm30, the preamp tubes are 12AX7A Ruby & power are 6L6GC
> rca blackplates.
>
> Reading about these 12AX7A rubys they are a low gain preamp anyway,
> which is not what i want, would some Sovtek 12AX7-WB or a Tung-Sol 12AX7
> put some gain in this amp and fix my high pitched squealing problem?

Go for the Tung-Sol, assuming you mean the currently-produced Reflektor
variety.

They're top-notch.

Lord Valve
BaaaaarrrrAAAACCCCKKKK!! <Safety!>

Re: preamp tubes

Lord Valve wrote:
> Picasso wrote:
>
>> Yeah, i pulled the tubes cause there was something fishy going on with
>> this amp, i swapped the 1st preamp tube for the 3rd (im calling the 3rd
>> the preamp closest to the powertubes)... and the amp started doing his
>> high pitched sqealing worse than it ever did.
>>
>> Its a marshall jtm30, the preamp tubes are 12AX7A Ruby & power are 6L6GC
>> rca blackplates.
>>
>> Reading about these 12AX7A rubys they are a low gain preamp anyway,
>> which is not what i want, would some Sovtek 12AX7-WB or a Tung-Sol 12AX7
>> put some gain in this amp and fix my high pitched squealing problem?
>
> Go for the Tung-Sol, assuming you mean the currently-produced Reflektor
> variety.
>
> They're top-notch.
>
> Lord Valve
> BaaaaarrrrAAAACCCCKKKK!! <Safety!>
>
>
>
>

Thanks for the help on both posts, and yes I do like the blackplates.
This is the first valve amp i've had, and seemed everything i read
BEFORE buying it seemed ok, then after purchasing it and talking to
other people the bad reviews came out, but this thing has been a rock in
the 2 years i've had it, except for this recent preamp tube issue, which
hopefully is nothing more than replacing these tubes (which really don't
seem to be what i want in it anyway).

Thanks agian.

Re: preamp tubes

>> Go for the Tung-Sol, assuming you mean the currently-produced Reflektor
>> variety.
>>
>> They're top-notch.
>>
>> Lord Valve
>> BaaaaarrrrAAAACCCCKKKK!! <Safety!>


Picasso...

They're not 'top notch', this guys pimping for Mike Matthews / New
Sensor or who knows who. The NEW Reflektor / Tung Sol bit is B.S. /
Marketing.

If you *REALLY* want high quality, check out N.O.S. Mullards for the
preamp tubes and the best currently manufactured 6L6GC's are made
by Winged C, formerly known as Svetlana.

Preamp:

https://w w w .tubeworld . com /index high.htm

Power Output:
>
Winged "C" (SED) 6L6GCSvetlana 6L6GC Type Vacuum Tubes. Image,
description, online ordering, and comparison reviews with other 6L6 type
valves.
thetubestore . com /6l6gc.html
>
High Current Winged "C" 6L6GCThese tubes are Winged "C" 6L6GC tubes that
draw higher than usual plate current. Because of this many amps can not
properly bias these tubes without a ...
thetubestore . com /bar.html
>
SED Winged "C" 6L6 power tube: Harmony Central User ReviewsProduct: SED
Winged "C" 6L6 power tube Price Paid: USD 88.00 Submitted 08/24/2007 at
09:16pm by daniel gan Email: dcgan1 at yahoo<dot>com ...
reviews.harmony-central . com /reviews/Effects/product/SED/Winged+%22C%22+6L6+power+tube/10/1

>
6L6GC SED winged "C" matched pr.We are now stocking the well regarded
Svetlana 6L6GC from St. Petersberg,Russia with WINGED "C" LOGO. These
have a very nice harmonic vintage tone for your ...
tubeman . com /item418.htm
>
Svetlana Winged C tube pice listThe 'Winged C' 6L6GC is a glass envelope
beam-power tetrode intended for high-power audio amplifier service.
Close manufacturing specification tolerances ...
w w w .evatco . com .au/svet1.htm
>
[PDF] Watford Valves - Test ReviewsFile Format: PDF/Adobe Acrobat - View
as HTML
6L6GC or Winged C as it is known in the. U.S.A. It does not sound close.
.... The original Svetlana/winged c 6L6GC. was ideal in all applications
with a ...
w w w .watfordvalves . com /cgi-bin/documents/testreport 44.pdf
>
Watford Valves :: Product - 6L6GC/SVETLANA / WINGED C CRYOThese are The
ORIGINAL Svetlana 6L6GC as made by JSC Svetlana and are also known by
the the name of Winged C. The valve produces an even and rich soundstage ...
w w w .watfordvalves . com /product detail.asp?id=1401
>
euro-hWinged C 6L6: This is a very nice tube with nice low end, not real
deep but much better than any of the Sovtek tubes including the now
sovtek labeled ...
w w w .eurotubes . com /euro-h.htm
>
SED Winged C 6L6GC PwrAmp valve mch pr - $60.40 : The Amp Hunter ...The
Amp Hunter SED Winged C 6L6GC PwrAmp valve mch pr -
theamphunter . com /index.php?main page=product info&cPath=9 26&products id)
>
SED "Winged C" 6L6GCSED Winged C 6L6GC- function tpm() { window.open
('/rare/tpm.htm', 'newwindow',
'config=width=762,toolbar=no,menubar=no,scrollbars=yes,resizable=yes ...
upscaleaudio.3dcartstores . com /product.asp?itemid=65&catid=87

Re: preamp tubes

Truth~Seeker schrieb:
>>> Go for the Tung-Sol, assuming you mean the currently-produced Reflektor
>>> variety.
>>>
>>> They're top-notch.
>>>
>>> Lord Valve
>>> BaaaaarrrrAAAACCCCKKKK!! <Safety!>
>
>
> Picasso...
>
> They're not 'top notch', this guys pimping for Mike Matthews / New
> Sensor or who knows who. The NEW Reflektor / Tung Sol bit is B.S. /
> Marketing.
>
> If you *REALLY* want high quality, check out N.O.S. Mullards for the
> preamp tubes and the best currently manufactured 6L6GC's are made
> by Winged C, formerly known as Svetlana.
>
> Preamp:
>
> https://w w w .tubeworld . com /index high.htm
>
> Power Output:
> >
> Winged "C" (SED) 6L6GCSvetlana 6L6GC Type Vacuum Tubes. Image,
> description, online ordering, and comparison reviews with other 6L6 type
> valves.
> thetubestore . com /6l6gc.html
> >
> High Current Winged "C" 6L6GCThese tubes are Winged "C" 6L6GC tubes that
> draw higher than usual plate current. Because of this many amps can not
> properly bias these tubes without a ...
> thetubestore . com /bar.html
> >
> SED Winged "C" 6L6 power tube: Harmony Central User ReviewsProduct: SED
> Winged "C" 6L6 power tube Price Paid: USD 88.00 Submitted 08/24/2007 at
> 09:16pm by daniel gan Email: dcgan1 at yahoo<dot>com ...
> reviews.harmony-central . com /reviews/Effects/product/SED/Winged+%22C%22+6L6+power+tube/10/1
>
> >
> 6L6GC SED winged "C" matched pr.We are now stocking the well regarded
> Svetlana 6L6GC from St. Petersberg,Russia with WINGED "C" LOGO. These
> have a very nice harmonic vintage tone for your ...
> tubeman . com /item418.htm
> >
> Svetlana Winged C tube pice listThe 'Winged C' 6L6GC is a glass envelope
> beam-power tetrode intended for high-power audio amplifier service.
> Close manufacturing specification tolerances ...
> w w w .evatco . com .au/svet1.htm
> >
> [PDF] Watford Valves - Test ReviewsFile Format: PDF/Adobe Acrobat - View
> as HTML
> 6L6GC or Winged C as it is known in the. U.S.A. It does not sound close.
> ..... The original Svetlana/winged c 6L6GC. was ideal in all
> applications with a ...
> w w w .watfordvalves . com /cgi-bin/documents/testreport 44.pdf
> >
> Watford Valves :: Product - 6L6GC/SVETLANA / WINGED C CRYOThese are The
> ORIGINAL Svetlana 6L6GC as made by JSC Svetlana and are also known by
> the the name of Winged C. The valve produces an even and rich soundstage
> ...
> w w w .watfordvalves . com /product detail.asp?id=1401
> >
> euro-hWinged C 6L6: This is a very nice tube with nice low end, not real
> deep but much better than any of the Sovtek tubes including the now
> sovtek labeled ...
> w w w .eurotubes . com /euro-h.htm
> >
> SED Winged C 6L6GC PwrAmp valve mch pr - $60.40 : The Amp Hunter ...The
> Amp Hunter SED Winged C 6L6GC PwrAmp valve mch pr -
> theamphunter . com /index.php?main page=product info&cPath=9 26&products id)
> >
> SED "Winged C" 6L6GCSED Winged C 6L6GC- function tpm() { window.open
> ('/rare/tpm.htm', 'newwindow',
> 'config=width=762,toolbar=no,menubar=no,scrollbars=yes,resizable=yes ...
> upscaleaudio.3dcartstores . com /product.asp?itemid=65&catid=87
>
>
>
>

Marc,
try to put a svet 6L6 into a JTM30... . it will be broken after the first
transport the amp has seen.

Even your holy SVETLANA glass is *breakable*. It's just glass.

No place in this amp for anything taller than a RCA or GE 6L6GC, a
tungsol 5881, a 6P3-CE (button base) or a TAD 6L6-GC (GE Type).

Jochen

Re: preamp tubes

jh wrote:

> Truth~Seeker schrieb:
> >>> Go for the Tung-Sol, assuming you mean the currently-produced Reflektor
> >>> variety.
> >>>
> >>> They're top-notch.
> >>>
> >>> Lord Valve
> >>> BaaaaarrrrAAAACCCCKKKK!! <Safety!>
> >
> >
> > Picasso...
> >
> > They're not 'top notch', this guys pimping for Mike Matthews / New
> > Sensor or who knows who. The NEW Reflektor / Tung Sol bit is B.S. /
> > Marketing.
> >
> > If you *REALLY* want high quality, check out N.O.S. Mullards for the
> > preamp tubes and the best currently manufactured 6L6GC's are made
> > by Winged C, formerly known as Svetlana.
> >
> > Preamp:
> >
> > https://w w w .tubeworld . com /index_high.htm
> >
> > Power Output:
> > >
> > Winged "C" (SED) 6L6GCSvetlana 6L6GC Type Vacuum Tubes. Image,
> > description, online ordering, and comparison reviews with other 6L6 type
> > valves.
> > thetubestore . com /6l6gc.html
> > >
> > High Current Winged "C" 6L6GCThese tubes are Winged "C" 6L6GC tubes that
> > draw higher than usual plate current. Because of this many amps can not
> > properly bias these tubes without a ...
> > thetubestore . com /bar.html
> > >
> > SED Winged "C" 6L6 power tube: Harmony Central User ReviewsProduct: SED
> > Winged "C" 6L6 power tube Price Paid: USD 88.00 Submitted 08/24/2007 at
> > 09:16pm by daniel gan Email: dcgan1 at yahoo<dot>com ...
> > reviews.harmony-central . com /reviews/Effects/product/SED/Winged+%22C%22+6L6+power+tube/10/1
> >
> > >
> > 6L6GC SED winged "C" matched pr.We are now stocking the well regarded
> > Svetlana 6L6GC from St. Petersberg,Russia with WINGED "C" LOGO. These
> > have a very nice harmonic vintage tone for your ...
> > tubeman . com /item418.htm
> > >
> > Svetlana Winged C tube pice listThe 'Winged C' 6L6GC is a glass envelope
> > beam-power tetrode intended for high-power audio amplifier service.
> > Close manufacturing specification tolerances ...
> > w w w .evatco . com .au/svet1.htm
> > >
> > [PDF] Watford Valves - Test ReviewsFile Format: PDF/Adobe Acrobat - View
> > as HTML
> > 6L6GC or Winged C as it is known in the. U.S.A. It does not sound close.
> > ..... The original Svetlana/winged c 6L6GC. was ideal in all
> > applications with a ...
> > w w w .watfordvalves . com /cgi-bin/documents/testreport_44.pdf
> > >
> > Watford Valves :: Product - 6L6GC/SVETLANA / WINGED C CRYOThese are The
> > ORIGINAL Svetlana 6L6GC as made by JSC Svetlana and are also known by
> > the the name of Winged C. The valve produces an even and rich soundstage
> > ...
> > w w w .watfordvalves . com /product_detail.asp?id=1401
> > >
> > euro-hWinged C 6L6: This is a very nice tube with nice low end, not real
> > deep but much better than any of the Sovtek tubes including the now
> > sovtek labeled ...
> > w w w .eurotubes . com /euro-h.htm
> > >
> > SED Winged C 6L6GC PwrAmp valve mch pr - $60.40 : The Amp Hunter ...The
> > Amp Hunter SED Winged C 6L6GC PwrAmp valve mch pr -
> > theamphunter . com /index.php?main_page=product_info&cPath=9_26&products_id=29
> > >
> > SED "Winged C" 6L6GCSED Winged C 6L6GC- function tpm() { window.open
> > ('/rare/tpm.htm', 'newwindow',
> > 'config=width=762,toolbar=no,menubar=no,scrollbars=yes,resizable=yes ...
> > upscaleaudio.3dcartstores . com /product.asp?itemid=65&catid=87
> >
> >
> >
> >
>
> Marc,
> try to put a svet 6L6 into a JTM30... . it will be broken after the first
> transport the amp has seen.
>
> Even your holy SVETLANA glass is *breakable*. It's just glass.
>
> No place in this amp for anything taller than a RCA or GE 6L6GC, a
> tungsol 5881, a 6P3-CE (button base) or a TAD 6L6-GC (GE Type).
>
> Jochen

Actually, the OP was asking about preamp tubes.

I'd add the Reflektor/Tung-Sol 6L6GC-STR to your list
of shortbottles; it's just barely taller than the 5881, and
it's a *real 6L6GC, a blackplate, too. I have a customer
in Denver who builds Dumble clones, and the TS 6L6GC-STR
is the *only* currently-produced 6L6 he's been able to find
that survives at the 540VDC+ he runs them at. Field failure
rate has been vanishingly small - admittedly, from a
small sample, as I have less than 1000 sold so far - but the
best thing about them is that they sound absolutely *killer*.
In fact - if I may be so bold - they take a dump on a whole
lot of the "respected" NOS 6L6s.

Of course, I'm "pimping for Mike Matthews," so don't take
my word for it. Ears don't lie; yours won't. ;-) They may
be hard to find, as they've been in short supply lately.

Lord Valve
BaaaaarrrrrAAAAAACCCCCKKKKK!!!! <Safety!>

Re: preamp tubes

Lord Valve schrieb:
> jh wrote:
>
>> Truth~Seeker schrieb:
>>>>> Go for the Tung-Sol, assuming you mean the currently-produced Reflektor
>>>>> variety.
>>>>>
>>>>> They're top-notch.
>>>>>
>>>>> Lord Valve
>>>>> BaaaaarrrrAAAACCCCKKKK!! <Safety!>
>>>
>>> Picasso...
>>>
>>> They're not 'top notch', this guys pimping for Mike Matthews / New
>>> Sensor or who knows who. The NEW Reflektor / Tung Sol bit is B.S. /
>>> Marketing.
>>>
>>> If you *REALLY* want high quality, check out N.O.S. Mullards for the
>>> preamp tubes and the best currently manufactured 6L6GC's are made
>>> by Winged C, formerly known as Svetlana.
>>>
>>> Preamp:
>>>
>>> https://w w w .tubeworld . com /index high.htm
>>>
>>> Power Output:
>>> >
>>> Winged "C" (SED) 6L6GCSvetlana 6L6GC Type Vacuum Tubes. Image,
>>> description, online ordering, and comparison reviews with other 6L6 type
>>> valves.
>>> thetubestore . com /6l6gc.html
>>> >
>>> High Current Winged "C" 6L6GCThese tubes are Winged "C" 6L6GC tubes that
>>> draw higher than usual plate current. Because of this many amps can not
>>> properly bias these tubes without a ...
>>> thetubestore . com /bar.html
>>> >
>>> SED Winged "C" 6L6 power tube: Harmony Central User ReviewsProduct: SED
>>> Winged "C" 6L6 power tube Price Paid: USD 88.00 Submitted 08/24/2007 at
>>> 09:16pm by daniel gan Email: dcgan1 at yahoo<dot>com ...
>>> reviews.harmony-central . com /reviews/Effects/product/SED/Winged+%22C%22+6L6+power+tube/10/1
>>>
>>> >
>>> 6L6GC SED winged "C" matched pr.We are now stocking the well regarded
>>> Svetlana 6L6GC from St. Petersberg,Russia with WINGED "C" LOGO. These
>>> have a very nice harmonic vintage tone for your ...
>>> tubeman . com /item418.htm
>>> >
>>> Svetlana Winged C tube pice listThe 'Winged C' 6L6GC is a glass envelope
>>> beam-power tetrode intended for high-power audio amplifier service.
>>> Close manufacturing specification tolerances ...
>>> w w w .evatco . com .au/svet1.htm
>>> >
>>> [PDF] Watford Valves - Test ReviewsFile Format: PDF/Adobe Acrobat - View
>>> as HTML
>>> 6L6GC or Winged C as it is known in the. U.S.A. It does not sound close.
>>> ..... The original Svetlana/winged c 6L6GC. was ideal in all
>>> applications with a ...
>>> w w w .watfordvalves . com /cgi-bin/documents/testreport 44.pdf
>>> >
>>> Watford Valves :: Product - 6L6GC/SVETLANA / WINGED C CRYOThese are The
>>> ORIGINAL Svetlana 6L6GC as made by JSC Svetlana and are also known by
>>> the the name of Winged C. The valve produces an even and rich soundstage
>>> ...
>>> w w w .watfordvalves . com /product detail.asp?id=1401
>>> >
>>> euro-hWinged C 6L6: This is a very nice tube with nice low end, not real
>>> deep but much better than any of the Sovtek tubes including the now
>>> sovtek labeled ...
>>> w w w .eurotubes . com /euro-h.htm
>>> >
>>> SED Winged C 6L6GC PwrAmp valve mch pr - $60.40 : The Amp Hunter ...The
>>> Amp Hunter SED Winged C 6L6GC PwrAmp valve mch pr -
>>> theamphunter . com /index.php?main page=product info&cPath=9 26&products id)
>>> >
>>> SED "Winged C" 6L6GCSED Winged C 6L6GC- function tpm() { window.open
>>> ('/rare/tpm.htm', 'newwindow',
>>> 'config=width=762,toolbar=no,menubar=no,scrollbars=yes,resizable=yes ...
>>> upscaleaudio.3dcartstores . com /product.asp?itemid=65&catid=87
>>>
>>>
>>>
>>>
>> Marc,
>> try to put a svet 6L6 into a JTM30... . it will be broken after the first
>> transport the amp has seen.
>>
>> Even your holy SVETLANA glass is *breakable*. It's just glass.
>>
>> No place in this amp for anything taller than a RCA or GE 6L6GC, a
>> tungsol 5881, a 6P3-CE (button base) or a TAD 6L6-GC (GE Type).
>>
>> Jochen
>
> Actually, the OP was asking about preamp tubes.
>
> I'd add the Reflektor/Tung-Sol 6L6GC-STR to your list
> of shortbottles; it's just barely taller than the 5881, and
> it's a *real 6L6GC, a blackplate, too. I have a customer
> in Denver who builds Dumble clones, and the TS 6L6GC-STR
> is the *only* currently-produced 6L6 he's been able to find
> that survives at the 540VDC+ he runs them at. Field failure
> rate has been vanishingly small - admittedly, from a
> small sample, as I have less than 1000 sold so far - but the
> best thing about them is that they sound absolutely *killer*.
> In fact - if I may be so bold - they take a dump on a whole
> lot of the "respected" NOS 6L6s.
>
> Of course, I'm "pimping for Mike Matthews," so don't take
> my word for it. Ears don't lie; yours won't. ;-) They may
> be hard to find, as they've been in short supply lately.
>
> Lord Valve
> BaaaaarrrrrAAAAAACCCCCKKKKK!!!! <Safety!>
>
>
>
>

Hi LV
I didn't reply to the OP....I just can't stand marcs' "svet svet svet"
appraisal. They are surely fine tubes, except their 12AX7 turd, but
there are others - and competition is good for the improvement of
todays' variety of glass.

regards

Jochen

Re: preamp tubes

On Sun, 04 May 2008 19:17:34 +0200, jh <jh-audiop_NOSPAM@t-online.de>
wrote:

>Lord Valve schrieb:
>> jh wrote:
>>
>>> Truth~Seeker schrieb:
>>>>>> Go for the Tung-Sol, assuming you mean the currently-produced Reflektor
>>>>>> variety.
>>>>>>
>>>>>> They're top-notch.
>>>>>>
>>>>>> Lord Valve
>>>>>> BaaaaarrrrAAAACCCCKKKK!! <Safety!>
>>>>
>>>> Picasso...
>>>>
>>>> They're not 'top notch', this guys pimping for Mike Matthews / New
>>>> Sensor or who knows who. The NEW Reflektor / Tung Sol bit is B.S. /
>>>> Marketing.
>>>>
>>>> If you *REALLY* want high quality, check out N.O.S. Mullards for the
>>>> preamp tubes and the best currently manufactured 6L6GC's are made
>>>> by Winged C, formerly known as Svetlana.
>>>>
>>>> Preamp:
>>>>
>>>> https://w w w .tubeworld . com /index_high.htm
>>>>
>>>> Power Output:
>>>> >
>>>> Winged "C" (SED) 6L6GCSvetlana 6L6GC Type Vacuum Tubes. Image,
>>>> description, online ordering, and comparison reviews with other 6L6 type
>>>> valves.
>>>> thetubestore . com /6l6gc.html
>>>> >
>>>> High Current Winged "C" 6L6GCThese tubes are Winged "C" 6L6GC tubes that
>>>> draw higher than usual plate current. Because of this many amps can not
>>>> properly bias these tubes without a ...
>>>> thetubestore . com /bar.html
>>>> >
>>>> SED Winged "C" 6L6 power tube: Harmony Central User ReviewsProduct: SED
>>>> Winged "C" 6L6 power tube Price Paid: USD 88.00 Submitted 08/24/2007 at
>>>> 09:16pm by daniel gan Email: dcgan1 at yahoo<dot>com ...
>>>> reviews.harmony-central . com /reviews/Effects/product/SED/Winged+%22C%22+6L6+power+tube/10/1
>>>>
>>>> >
>>>> 6L6GC SED winged "C" matched pr.We are now stocking the well regarded
>>>> Svetlana 6L6GC from St. Petersberg,Russia with WINGED "C" LOGO. These
>>>> have a very nice harmonic vintage tone for your ...
>>>> tubeman . com /item418.htm
>>>> >
>>>> Svetlana Winged C tube pice listThe 'Winged C' 6L6GC is a glass envelope
>>>> beam-power tetrode intended for high-power audio amplifier service.
>>>> Close manufacturing specification tolerances ...
>>>> w w w .evatco . com .au/svet1.htm
>>>> >
>>>> [PDF] Watford Valves - Test ReviewsFile Format: PDF/Adobe Acrobat - View
>>>> as HTML
>>>> 6L6GC or Winged C as it is known in the. U.S.A. It does not sound close.
>>>> ..... The original Svetlana/winged c 6L6GC. was ideal in all
>>>> applications with a ...
>>>> w w w .watfordvalves . com /cgi-bin/documents/testreport_44.pdf
>>>> >
>>>> Watford Valves :: Product - 6L6GC/SVETLANA / WINGED C CRYOThese are The
>>>> ORIGINAL Svetlana 6L6GC as made by JSC Svetlana and are also known by
>>>> the the name of Winged C. The valve produces an even and rich soundstage
>>>> ...
>>>> w w w .watfordvalves . com /product_detail.asp?id=1401
>>>> >
>>>> euro-hWinged C 6L6: This is a very nice tube with nice low end, not real
>>>> deep but much better than any of the Sovtek tubes including the now
>>>> sovtek labeled ...
>>>> w w w .eurotubes . com /euro-h.htm
>>>> >
>>>> SED Winged C 6L6GC PwrAmp valve mch pr - $60.40 : The Amp Hunter ...The
>>>> Amp Hunter SED Winged C 6L6GC PwrAmp valve mch pr -
>>>> theamphunter . com /index.php?main_page=product_info&cPath=9_26&products_id=29
>>>> >
>>>> SED "Winged C" 6L6GCSED Winged C 6L6GC- function tpm() { window.open
>>>> ('/rare/tpm.htm', 'newwindow',
>>>> 'config=width=762,toolbar=no,menubar=no,scrollbars=yes,resizable=yes ...
>>>> upscaleaudio.3dcartstores . com /product.asp?itemid=65&catid=87
>>>>
>>>>
>>>>
>>>>
>>> Marc,
>>> try to put a svet 6L6 into a JTM30... . it will be broken after the first
>>> transport the amp has seen.
>>>
>>> Even your holy SVETLANA glass is *breakable*. It's just glass.
>>>
>>> No place in this amp for anything taller than a RCA or GE 6L6GC, a
>>> tungsol 5881, a 6P3-CE (button base) or a TAD 6L6-GC (GE Type).
>>>
>>> Jochen
>>
>> Actually, the OP was asking about preamp tubes.
>>
>> I'd add the Reflektor/Tung-Sol 6L6GC-STR to your list
>> of shortbottles; it's just barely taller than the 5881, and
>> it's a *real 6L6GC, a blackplate, too. I have a customer
>> in Denver who builds Dumble clones, and the TS 6L6GC-STR
>> is the *only* currently-produced 6L6 he's been able to find
>> that survives at the 540VDC+ he runs them at. Field failure
>> rate has been vanishingly small - admittedly, from a
>> small sample, as I have less than 1000 sold so far - but the
>> best thing about them is that they sound absolutely *killer*.
>> In fact - if I may be so bold - they take a dump on a whole
>> lot of the "respected" NOS 6L6s.
>>
>> Of course, I'm "pimping for Mike Matthews," so don't take
>> my word for it. Ears don't lie; yours won't. ;-) They may
>> be hard to find, as they've been in short supply lately.
>>
>> Lord Valve
>> BaaaaarrrrrAAAAAACCCCCKKKKK!!!! <Safety!>
>>
>>
>>
>>
>
>Hi LV
>I didn't reply to the OP....I just can't stand marcs' "svet svet svet"
>appraisal. They are surely fine tubes, except their 12AX7 turd, but
>there are others - and competition is good for the improvement of
>todays' variety of glass.
>
>regards
>
>Jochen
Listening and believing Macaroni Mulay about anything is taking your
life and your pocket book and giving it to the aliens. Stupid fucker
only understands 1/3 of what it reads and less of what it does. Nut
case de jour'. Hangs out here because???? who the hell knows? We ALL
wish he would cut out and not come back...get off his meds and starts
smoking crack or something and goes off into wookie land searching for
gay experiences in nursery schools and imagining he is some fantastic
guitar player but is only and always will only be a guitard...proceed
with caution...the cut n paste monster of USENET....

Re: preamp tubes

jh wrote:
> Lord Valve schrieb:
>> jh wrote:
>>
>>> Truth~Seeker schrieb:
>>>>>> Go for the Tung-Sol, assuming you mean the currently-produced
>>>>>> Reflektor
>>>>>> variety.
>>>>>>
>>>>>> They're top-notch.
>>>>>>
>>>>>> Lord Valve
>>>>>> BaaaaarrrrAAAACCCCKKKK!! <Safety!>
>>>>
>>>> Picasso...
>>>>
>>>> They're not 'top notch', this guys pimping for Mike Matthews / New
>>>> Sensor or who knows who. The NEW Reflektor / Tung Sol bit is B.S. /
>>>> Marketing.
>>>>
>>>> If you *REALLY* want high quality, check out N.O.S. Mullards for the
>>>> preamp tubes and the best currently manufactured 6L6GC's are made
>>>> by Winged C, formerly known as Svetlana.
>>>>
>>>> Preamp:
>>>>
>>>> https://w w w .tubeworld . com /index high.htm
>>>>
>>>> Power Output:
>>>> >
>>>> Winged "C" (SED) 6L6GCSvetlana 6L6GC Type Vacuum Tubes. Image,
>>>> description, online ordering, and comparison reviews with other 6L6
>>>> type
>>>> valves.
>>>> thetubestore . com /6l6gc.html
>>>> >
>>>> High Current Winged "C" 6L6GCThese tubes are Winged "C" 6L6GC tubes
>>>> that
>>>> draw higher than usual plate current. Because of this many amps can not
>>>> properly bias these tubes without a ...
>>>> thetubestore . com /bar.html
>>>> >
>>>> SED Winged "C" 6L6 power tube: Harmony Central User ReviewsProduct: SED
>>>> Winged "C" 6L6 power tube Price Paid: USD 88.00 Submitted 08/24/2007 at
>>>> 09:16pm by daniel gan Email: dcgan1 at yahoo<dot>com ...
>>>> reviews.harmony-central . com /reviews/Effects/product/SED/Winged+%22C%22+6L6+power+tube/10/1
>>>>
>>>>
>>>> >
>>>> 6L6GC SED winged "C" matched pr.We are now stocking the well regarded
>>>> Svetlana 6L6GC from St. Petersberg,Russia with WINGED "C" LOGO. These
>>>> have a very nice harmonic vintage tone for your ...
>>>> tubeman . com /item418.htm
>>>> >
>>>> Svetlana Winged C tube pice listThe 'Winged C' 6L6GC is a glass
>>>> envelope
>>>> beam-power tetrode intended for high-power audio amplifier service.
>>>> Close manufacturing specification tolerances ...
>>>> w w w .evatco . com .au/svet1.htm
>>>> >
>>>> [PDF] Watford Valves - Test ReviewsFile Format: PDF/Adobe Acrobat -
>>>> View
>>>> as HTML
>>>> 6L6GC or Winged C as it is known in the. U.S.A. It does not sound
>>>> close.
>>>> ..... The original Svetlana/winged c 6L6GC. was ideal in all
>>>> applications with a ...
>>>> w w w .watfordvalves . com /cgi-bin/documents/testreport 44.pdf
>>>> >
>>>> Watford Valves :: Product - 6L6GC/SVETLANA / WINGED C CRYOThese are The
>>>> ORIGINAL Svetlana 6L6GC as made by JSC Svetlana and are also known by
>>>> the the name of Winged C. The valve produces an even and rich
>>>> soundstage
>>>> ...
>>>> w w w .watfordvalves . com /product detail.asp?id=1401
>>>> >
>>>> euro-hWinged C 6L6: This is a very nice tube with nice low end, not
>>>> real
>>>> deep but much better than any of the Sovtek tubes including the now
>>>> sovtek labeled ...
>>>> w w w .eurotubes . com /euro-h.htm
>>>> >
>>>> SED Winged C 6L6GC PwrAmp valve mch pr - $60.40 : The Amp Hunter ...The
>>>> Amp Hunter SED Winged C 6L6GC PwrAmp valve mch pr -
>>>> theamphunter . com /index.php?main page=product info&cPath=9 26&products id)
>>>>
>>>> >
>>>> SED "Winged C" 6L6GCSED Winged C 6L6GC- function tpm() { window.open
>>>> ('/rare/tpm.htm', 'newwindow',
>>>> 'config=width=762,toolbar=no,menubar=no,scrollbars=yes,resizable=yes
>>>> ...
>>>> upscaleaudio.3dcartstores . com /product.asp?itemid=65&catid=87
>>>>
>>>>
>>>>
>>>>
>>> Marc,
>>> try to put a svet 6L6 into a JTM30... . it will be broken after the first
>>> transport the amp has seen.
>>>
>>> Even your holy SVETLANA glass is *breakable*. It's just glass.
>>>
>>> No place in this amp for anything taller than a RCA or GE 6L6GC, a
>>> tungsol 5881, a 6P3-CE (button base) or a TAD 6L6-GC (GE Type).
>>>
>>> Jochen
>>
>> Actually, the OP was asking about preamp tubes.
>>
>> I'd add the Reflektor/Tung-Sol 6L6GC-STR to your list
>> of shortbottles; it's just barely taller than the 5881, and
>> it's a *real 6L6GC, a blackplate, too. I have a customer
>> in Denver who builds Dumble clones, and the TS 6L6GC-STR
>> is the *only* currently-produced 6L6 he's been able to find
>> that survives at the 540VDC+ he runs them at. Field failure
>> rate has been vanishingly small - admittedly, from a
>> small sample, as I have less than 1000 sold so far - but the
>> best thing about them is that they sound absolutely *killer*.
>> In fact - if I may be so bold - they take a dump on a whole
>> lot of the "respected" NOS 6L6s.
>>
>> Of course, I'm "pimping for Mike Matthews," so don't take
>> my word for it. Ears don't lie; yours won't. ;-) They may
>> be hard to find, as they've been in short supply lately.
>>
>> Lord Valve
>> BaaaaarrrrrAAAAAACCCCCKKKKK!!!! <Safety!>
>>
>>
>>
>>
>
> Hi LV
> I didn't reply to the OP....I just can't stand marcs' "svet svet svet"
> appraisal. They are surely fine tubes, except their 12AX7 turd, but
> there are others - and competition is good for the improvement of
> todays' variety of glass.
>
> regards
>
> Jochen

Subject: Re: Mesa Boogie Tubes
Date: Thu, 9 Dec 1999 14:38:08 -0800
From: "Gil Ayan" <ayan@earthlink . net >
Organization: Frontier GlobalCenter Inc.
Newsgroups: alt.guitar.amps

Philip J. Bergeron wrote in message
<4B0B9EB2A5CF29B4.AF14F472431E6CD3.48188BE9F91167FA@lp.airnews . net >...

I may get yelled at by some of the more technically savvy on the NG, but
in the 12 years I have had my Boogie Mark III, I replaced the power
tubes with all sorts of different tubes, never messed with the bias, and
never had a problem. I used Boogie tubes, Groove tubes (of different
ratings), Sovtek,whatever was available at the time. Some sounded
better than others, none sounded bad.

You have been lucky, in my opinion. In the past, I think tubes used to
be a little more consistent. But nowadays, for exampe, I use Svetlana
power tubes a lot and they vary tremendously. While some take -52V @475
V plate voltage to bias at about 30mA (which is what Fender and Boogie
would specify for their 6L6s), others have needed as low as -58V to bias
at the same place. That is a huge range, I had a pair that was idling at
68mA each at -52V, at those current levels, the tube won't last at all
unless you throttle back some.

Gil

Re: preamp tubes

Truth~Seeker schrieb:
> jh wrote:
>> Lord Valve schrieb:
>>> jh wrote:
>>>
>>>> Truth~Seeker schrieb:
>>>>>>> Go for the Tung-Sol, assuming you mean the currently-produced
>>>>>>> Reflektor
>>>>>>> variety.
>>>>>>>
>>>>>>> They're top-notch.
>>>>>>>
>>>>>>> Lord Valve
>>>>>>> BaaaaarrrrAAAACCCCKKKK!! <Safety!>
>>>>>
>>>>> Picasso...
>>>>>
>>>>> They're not 'top notch', this guys pimping for Mike Matthews / New
>>>>> Sensor or who knows who. The NEW Reflektor / Tung Sol bit is B.S. /
>>>>> Marketing.
>>>>>
>>>>> If you *REALLY* want high quality, check out N.O.S. Mullards for the
>>>>> preamp tubes and the best currently manufactured 6L6GC's are made
>>>>> by Winged C, formerly known as Svetlana.
>>>>>
>>>>> Preamp:
>>>>>
>>>>> https://w w w .tubeworld . com /index high.htm
>>>>>
>>>>> Power Output:
>>>>> >
>>>>> Winged "C" (SED) 6L6GCSvetlana 6L6GC Type Vacuum Tubes. Image,
>>>>> description, online ordering, and comparison reviews with other 6L6
>>>>> type
>>>>> valves.
>>>>> thetubestore . com /6l6gc.html
>>>>> >
>>>>> High Current Winged "C" 6L6GCThese tubes are Winged "C" 6L6GC tubes
>>>>> that
>>>>> draw higher than usual plate current. Because of this many amps can
>>>>> not
>>>>> properly bias these tubes without a ...
>>>>> thetubestore . com /bar.html
>>>>> >
>>>>> SED Winged "C" 6L6 power tube: Harmony Central User ReviewsProduct:
>>>>> SED
>>>>> Winged "C" 6L6 power tube Price Paid: USD 88.00 Submitted
>>>>> 08/24/2007 at
>>>>> 09:16pm by daniel gan Email: dcgan1 at yahoo<dot>com ...
>>>>> reviews.harmony-central . com /reviews/Effects/product/SED/Winged+%22C%22+6L6+power+tube/10/1
>>>>>
>>>>>
>>>>> >
>>>>> 6L6GC SED winged "C" matched pr.We are now stocking the well regarded
>>>>> Svetlana 6L6GC from St. Petersberg,Russia with WINGED "C" LOGO. These
>>>>> have a very nice harmonic vintage tone for your ...
>>>>> tubeman . com /item418.htm
>>>>> >
>>>>> Svetlana Winged C tube pice listThe 'Winged C' 6L6GC is a glass
>>>>> envelope
>>>>> beam-power tetrode intended for high-power audio amplifier service.
>>>>> Close manufacturing specification tolerances ...
>>>>> w w w .evatco . com .au/svet1.htm
>>>>> >
>>>>> [PDF] Watford Valves - Test ReviewsFile Format: PDF/Adobe Acrobat -
>>>>> View
>>>>> as HTML
>>>>> 6L6GC or Winged C as it is known in the. U.S.A. It does not sound
>>>>> close.
>>>>> ..... The original Svetlana/winged c 6L6GC. was ideal in all
>>>>> applications with a ...
>>>>> w w w .watfordvalves . com /cgi-bin/documents/testreport 44.pdf
>>>>> >
>>>>> Watford Valves :: Product - 6L6GC/SVETLANA / WINGED C CRYOThese are
>>>>> The
>>>>> ORIGINAL Svetlana 6L6GC as made by JSC Svetlana and are also known by
>>>>> the the name of Winged C. The valve produces an even and rich
>>>>> soundstage
>>>>> ...
>>>>> w w w .watfordvalves . com /product detail.asp?id=1401
>>>>> >
>>>>> euro-hWinged C 6L6: This is a very nice tube with nice low end, not
>>>>> real
>>>>> deep but much better than any of the Sovtek tubes including the now
>>>>> sovtek labeled ...
>>>>> w w w .eurotubes . com /euro-h.htm
>>>>> >
>>>>> SED Winged C 6L6GC PwrAmp valve mch pr - $60.40 : The Amp Hunter
>>>>> ...The
>>>>> Amp Hunter SED Winged C 6L6GC PwrAmp valve mch pr -
>>>>> theamphunter . com /index.php?main page=product info&cPath=9 26&products id)
>>>>>
>>>>> >
>>>>> SED "Winged C" 6L6GCSED Winged C 6L6GC- function tpm() { window.open
>>>>> ('/rare/tpm.htm', 'newwindow',
>>>>> 'config=width=762,toolbar=no,menubar=no,scrollbars=yes,resizable=yes
>>>>> ...
>>>>> upscaleaudio.3dcartstores . com /product.asp?itemid=65&catid=87
>>>>>
>>>>>
>>>>>
>>>>>
>>>> Marc,
>>>> try to put a svet 6L6 into a JTM30... . it will be broken after the first
>>>> transport the amp has seen.
>>>>
>>>> Even your holy SVETLANA glass is *breakable*. It's just glass.
>>>>
>>>> No place in this amp for anything taller than a RCA or GE 6L6GC, a
>>>> tungsol 5881, a 6P3-CE (button base) or a TAD 6L6-GC (GE Type).
>>>>
>>>> Jochen
>>>
>>> Actually, the OP was asking about preamp tubes.
>>>
>>> I'd add the Reflektor/Tung-Sol 6L6GC-STR to your list
>>> of shortbottles; it's just barely taller than the 5881, and
>>> it's a *real 6L6GC, a blackplate, too. I have a customer
>>> in Denver who builds Dumble clones, and the TS 6L6GC-STR
>>> is the *only* currently-produced 6L6 he's been able to find
>>> that survives at the 540VDC+ he runs them at. Field failure
>>> rate has been vanishingly small - admittedly, from a
>>> small sample, as I have less than 1000 sold so far - but the
>>> best thing about them is that they sound absolutely *killer*.
>>> In fact - if I may be so bold - they take a dump on a whole
>>> lot of the "respected" NOS 6L6s.
>>>
>>> Of course, I'm "pimping for Mike Matthews," so don't take
>>> my word for it. Ears don't lie; yours won't. ;-) They may
>>> be hard to find, as they've been in short supply lately.
>>>
>>> Lord Valve
>>> BaaaaarrrrrAAAAAACCCCCKKKKK!!!! <Safety!>
>>>
>>>
>>>
>>>
>>
>> Hi LV
>> I didn't reply to the OP....I just can't stand marcs' "svet svet svet"
>> appraisal. They are surely fine tubes, except their 12AX7 turd, but
>> there are others - and competition is good for the improvement of
>> todays' variety of glass.
>>
>> regards
>>
>> Jochen
>
> Subject: Re: Mesa Boogie Tubes
> Date: Thu, 9 Dec 1999 14:38:08 -0800
> From: "Gil Ayan" <ayan@earthlink . net >
> Organization: Frontier GlobalCenter Inc.
> Newsgroups: alt.guitar.amps
>
> Philip J. Bergeron wrote in message
> <4B0B9EB2A5CF29B4.AF14F472431E6CD3.48188BE9F91167FA@lp.airnews . net >...
>
> I may get yelled at by some of the more technically savvy on the NG, but
> in the 12 years I have had my Boogie Mark III, I replaced the power
> tubes with all sorts of different tubes, never messed with the bias, and
> never had a problem. I used Boogie tubes, Groove tubes (of different
> ratings), Sovtek,whatever was available at the time. Some sounded
> better than others, none sounded bad.
>
> You have been lucky, in my opinion. In the past, I think tubes used to
> be a little more consistent. But nowadays, for exampe, I use Svetlana
> power tubes a lot and they vary tremendously. While some take -52V @475
> V plate voltage to bias at about 30mA (which is what Fender and Boogie
> would specify for their 6L6s), others have needed as low as -58V to bias
> at the same place. That is a huge range, I had a pair that was idling at
> 68mA each at -52V, at those current levels, the tube won't last at all
> unless you throttle back some.
>
> Gil

marc,

your point is?

variations?
STR?
ever mesured the different requirements of old RCAs, GEs, Telefunkens,
Valvos, Mullards?

STR!

Jochen

Re: preamp tubes

jh wrote:
> Truth~Seeker schrieb:
>> jh wrote:
>>> Lord Valve schrieb:
>>>> jh wrote:
>>>>
>>>>> Truth~Seeker schrieb:
>>>>>>>> Go for the Tung-Sol, assuming you mean the currently-produced
>>>>>>>> Reflektor
>>>>>>>> variety.
>>>>>>>>
>>>>>>>> They're top-notch.
>>>>>>>>
>>>>>>>> Lord Valve
>>>>>>>> BaaaaarrrrAAAACCCCKKKK!! <Safety!>
>>>>>>
>>>>>> Picasso...
>>>>>>
>>>>>> They're not 'top notch', this guys pimping for Mike Matthews / New
>>>>>> Sensor or who knows who. The NEW Reflektor / Tung Sol bit is B.S. /
>>>>>> Marketing.
>>>>>>
>>>>>> If you *REALLY* want high quality, check out N.O.S. Mullards for the
>>>>>> preamp tubes and the best currently manufactured 6L6GC's are made
>>>>>> by Winged C, formerly known as Svetlana.
>>>>>>
>>>>>> Preamp:
>>>>>>
>>>>>> https://w w w .tubeworld . com /index high.htm
>>>>>>
>>>>>> Power Output:
>>>>>> >
>>>>>> Winged "C" (SED) 6L6GCSvetlana 6L6GC Type Vacuum Tubes. Image,
>>>>>> description, online ordering, and comparison reviews with other
>>>>>> 6L6 type
>>>>>> valves.
>>>>>> thetubestore . com /6l6gc.html
>>>>>> >
>>>>>> High Current Winged "C" 6L6GCThese tubes are Winged "C" 6L6GC
>>>>>> tubes that
>>>>>> draw higher than usual plate current. Because of this many amps
>>>>>> can not
>>>>>> properly bias these tubes without a ...
>>>>>> thetubestore . com /bar.html
>>>>>> >
>>>>>> SED Winged "C" 6L6 power tube: Harmony Central User
>>>>>> ReviewsProduct: SED
>>>>>> Winged "C" 6L6 power tube Price Paid: USD 88.00 Submitted
>>>>>> 08/24/2007 at
>>>>>> 09:16pm by daniel gan Email: dcgan1 at yahoo<dot>com ...
>>>>>> reviews.harmony-central . com /reviews/Effects/product/SED/Winged+%22C%22+6L6+power+tube/10/1
>>>>>>
>>>>>>
>>>>>> >
>>>>>> 6L6GC SED winged "C" matched pr.We are now stocking the well regarded
>>>>>> Svetlana 6L6GC from St. Petersberg,Russia with WINGED "C" LOGO. These
>>>>>> have a very nice harmonic vintage tone for your ...
>>>>>> tubeman . com /item418.htm
>>>>>> >
>>>>>> Svetlana Winged C tube pice listThe 'Winged C' 6L6GC is a glass
>>>>>> envelope
>>>>>> beam-power tetrode intended for high-power audio amplifier service.
>>>>>> Close manufacturing specification tolerances ...
>>>>>> w w w .evatco . com .au/svet1.htm
>>>>>> >
>>>>>> [PDF] Watford Valves - Test ReviewsFile Format: PDF/Adobe Acrobat
>>>>>> - View
>>>>>> as HTML
>>>>>> 6L6GC or Winged C as it is known in the. U.S.A. It does not sound
>>>>>> close.
>>>>>> ..... The original Svetlana/winged c 6L6GC. was ideal in all
>>>>>> applications with a ...
>>>>>> w w w .watfordvalves . com /cgi-bin/documents/testreport 44.pdf
>>>>>> >
>>>>>> Watford Valves :: Product - 6L6GC/SVETLANA / WINGED C CRYOThese
>>>>>> are The
>>>>>> ORIGINAL Svetlana 6L6GC as made by JSC Svetlana and are also known by
>>>>>> the the name of Winged C. The valve produces an even and rich
>>>>>> soundstage
>>>>>> ...
>>>>>> w w w .watfordvalves . com /product detail.asp?id=1401
>>>>>> >
>>>>>> euro-hWinged C 6L6: This is a very nice tube with nice low end,
>>>>>> not real
>>>>>> deep but much better than any of the Sovtek tubes including the now
>>>>>> sovtek labeled ...
>>>>>> w w w .eurotubes . com /euro-h.htm
>>>>>> >
>>>>>> SED Winged C 6L6GC PwrAmp valve mch pr - $60.40 : The Amp Hunter
>>>>>> ...The
>>>>>> Amp Hunter SED Winged C 6L6GC PwrAmp valve mch pr -
>>>>>> theamphunter . com /index.php?main page=product info&cPath=9 26&products id)
>>>>>>
>>>>>> >
>>>>>> SED "Winged C" 6L6GCSED Winged C 6L6GC- function tpm() { window.open
>>>>>> ('/rare/tpm.htm', 'newwindow',
>>>>>> 'config=width=762,toolbar=no,menubar=no,scrollbars=yes,resizable=yes
>>>>>> ...
>>>>>> upscaleaudio.3dcartstores . com /product.asp?itemid=65&catid=87
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>> Marc,
>>>>> try to put a svet 6L6 into a JTM30... . it will be broken after the
>>>>> first
>>>>> transport the amp has seen.
>>>>>
>>>>> Even your holy SVETLANA glass is *breakable*. It's just glass.
>>>>>
>>>>> No place in this amp for anything taller than a RCA or GE 6L6GC, a
>>>>> tungsol 5881, a 6P3-CE (button base) or a TAD 6L6-GC (GE Type).
>>>>>
>>>>> Jochen
>>>>
>>>> Actually, the OP was asking about preamp tubes.
>>>>
>>>> I'd add the Reflektor/Tung-Sol 6L6GC-STR to your list
>>>> of shortbottles; it's just barely taller than the 5881, and
>>>> it's a *real 6L6GC, a blackplate, too. I have a customer
>>>> in Denver who builds Dumble clones, and the TS 6L6GC-STR
>>>> is the *only* currently-produced 6L6 he's been able to find
>>>> that survives at the 540VDC+ he runs them at. Field failure
>>>> rate has been vanishingly small - admittedly, from a
>>>> small sample, as I have less than 1000 sold so far - but the
>>>> best thing about them is that they sound absolutely *killer*.
>>>> In fact - if I may be so bold - they take a dump on a whole
>>>> lot of the "respected" NOS 6L6s.
>>>>
>>>> Of course, I'm "pimping for Mike Matthews," so don't take
>>>> my word for it. Ears don't lie; yours won't. ;-) They may
>>>> be hard to find, as they've been in short supply lately.
>>>>
>>>> Lord Valve
>>>> BaaaaarrrrrAAAAAACCCCCKKKKK!!!! <Safety!>
>>>>
>>>>
>>>>
>>>>
>>>
>>> Hi LV
>>> I didn't reply to the OP....I just can't stand marcs' "svet svet
>>> svet" appraisal. They are surely fine tubes, except their 12AX7 turd,
>>> but there are others - and competition is good for the improvement of
>>> todays' variety of glass.
>>>
>>> regards
>>>
>>> Jochen
>>
>> Subject: Re: Mesa Boogie Tubes
>> Date: Thu, 9 Dec 1999 14:38:08 -0800
>> From: "Gil Ayan" <ayan@earthlink . net >
>> Organization: Frontier GlobalCenter Inc.
>> Newsgroups: alt.guitar.amps
>>
>> Philip J. Bergeron wrote in message
>> <4B0B9EB2A5CF29B4.AF14F472431E6CD3.48188BE9F91167FA@lp.airnews . net >...
>>
>> I may get yelled at by some of the more technically savvy on the NG,
>> but in the 12 years I have had my Boogie Mark III, I replaced the
>> power tubes with all sorts of different tubes, never messed with the
>> bias, and never had a problem. I used Boogie tubes, Groove tubes (of
>> different ratings), Sovtek,whatever was available at the time. Some
>> sounded better than others, none sounded bad.
>>
>> You have been lucky, in my opinion. In the past, I think tubes used
>> to be a little more consistent. But nowadays, for exampe, I use
>> Svetlana power tubes a lot and they vary tremendously. While some
>> take -52V @475 V plate voltage to bias at about 30mA (which is what
>> Fender and Boogie would specify for their 6L6s), others have needed as
>> low as -58V to bias at the same place. That is a huge range, I had a
>> pair that was idling at 68mA each at -52V, at those current levels,
>> the tube won't last at all unless you throttle back some.
>>
>> Gil
>
> marc,
>
> your point is?
>
> variations?
> STR?
> ever mesured the different requirements of old RCAs, GEs, Telefunkens,
> Valvos, Mullards?
>
> STR!
>
> Jochen

Ha, ha, I'll let william or some other low life answer that with some bile.

Re: preamp tubes

I have a JTM30 -- and I will share an email I got from the last tube
dealer who sold me tubes. This is mostly about the output stage, but
still good information...

The Sovtek- along with virtually all of the newer current production
tubes- are all "non-original". They are all based on 40+ year old
designs,
manufactured with modern materials, modern production techniques, and
have
been changed to suit the demands of modern equipment...The
5881/5881WXT got
it's name simply because it has a slightly lower overall output than
a
6L6GC, just as a real 5881 does. The two tubes are quite different,
however...

Some of their best sounding amplifiers of all time, from the late
50's and early 60's came stock with original TungSol 5881 installed...

> I am no tube specialist, it is just that the info I read about the JTM
> said it really wants "the original Russian 5881 tubes"

...That would be the Sovtek 5881/5881WXT. The only difference between
the two Sovtek models is the base- the 5881 has a wafer base, which is
a
thin piece of plastic, while the WXT version has a full base. The guts
of
the tubes are identical. The full base tubes fit in all the same gear
as the
wafer base- the problem with the wafer based version, is that it
didn't fit
well in the Fender amps that had the beartrap tube retainers, so
Sovtek
introduced a second version of the tube with a full base, so that the
retainers had something to grip onto. We had poor experiences with the
wafer
based tubes in the past, losing vacuum if not handled with great care,
which
we assumed was due to the weakness at the base, so we only offer the
full
base version, as it fits in everything anyway. Slightly more expensive
than
the wafer version, but if the tubes don't lose vacuum, it's worth it.
Fender
uses the 5881WXT in virtually all of their production amplifiers- if
you buy
a new Fender, it will come with a set of these, due to their
ruggedness and
reliability. They generally long outlive the new amplifier warranty
period,
and sound great...

Our recommendation to you is to use the TungSol 6L6GC STR instead of
TS5881 in your Marshall. They are a top-shelf upgrade over the
5881WXT, and
will allow your JTM to be all it can be...

Re: preamp tubes

cruisemates wrote:
> I have a JTM30 -- and I will share an email I got from the last tube
> dealer who sold me tubes. This is mostly about the output stage, but
> still good information...
>
> The Sovtek- along with virtually all of the newer current production
> tubes- are all "non-original". They are all based on 40+ year old
> designs,
> manufactured with modern materials, modern production techniques, and
> have
> been changed to suit the demands of modern equipment...The
> 5881/5881WXT got
> it's name simply because it has a slightly lower overall output than
> a
> 6L6GC, just as a real 5881 does. The two tubes are quite different,
> however...
>
> Some of their best sounding amplifiers of all time, from the late
> 50's and early 60's came stock with original TungSol 5881 installed...
>
>> I am no tube specialist, it is just that the info I read about the JTM
>> said it really wants "the original Russian 5881 tubes"
>
> ....That would be the Sovtek 5881/5881WXT. The only difference between
> the two Sovtek models is the base- the 5881 has a wafer base, which is
> a
> thin piece of plastic, while the WXT version has a full base. The guts
> of
> the tubes are identical. The full base tubes fit in all the same gear
> as the
> wafer base- the problem with the wafer based version, is that it
> didn't fit
> well in the Fender amps that had the beartrap tube retainers, so
> Sovtek
> introduced a second version of the tube with a full base, so that the
> retainers had something to grip onto. We had poor experiences with the
> wafer
> based tubes in the past, losing vacuum if not handled with great care,
> which
> we assumed was due to the weakness at the base, so we only offer the
> full
> base version, as it fits in everything anyway. Slightly more expensive
> than
> the wafer version, but if the tubes don't lose vacuum, it's worth it.
> Fender
> uses the 5881WXT in virtually all of their production amplifiers- if
> you buy
> a new Fender, it will come with a set of these, due to their
> ruggedness and
> reliability. They generally long outlive the new amplifier warranty
> period,
> and sound great...
>
> Our recommendation to you is to use the TungSol 6L6GC STR instead of
> TS5881 in your Marshall. They are a top-shelf upgrade over the
> 5881WXT, and
> will allow your JTM to be all it can be...
>
>
Great post and informative! This, vs. $$$/snake oil opinion is what
persuades and convinces. Thank you. mvm :-)

Re: preamp tubes

And by the way - if the 6L6s are longer than the 5881s, it is really
easy to take the amp's protective metal shield and flip it around so
the longer edge is on the other side. get some 1/2 inch rubber feet
and longer screws to hold it in place.

Re: preamp tubes

In article
<eb19ffe8-6c61-4774-bda9-b1b88c34ed4b@x19g2000prg.googlegroups . com >,
cruisemates <editor@cruisemates . com > wrote:

> And by the way - if the 6L6s are longer than the 5881s, it is really
> easy to take the amp's protective metal shield and flip it around so
> the longer edge is on the other side. get some 1/2 inch rubber feet
> and longer screws to hold it in place.

However, the new TungSol 6L6 STRs have a short bottle. Not quite as
short as a REAL TungSol 5881, but shorter than NOS 6L6s and certainly
shorter than any Sovtek, JJ or Sino currently made. They'll fit fine in
your JTM30 with the cage installed. Big tone improvement over the
Sovtek 5881.

One more thing: If you order them (or any tube for that matter) from a
vendor who pre-matches them, you should specify a cool-running pair.
The wimpy JTM30 power transformer doesn't like big currents and
"adjusting" the bias on a JTM30 is a 1-1/2 to 2 hour job (no kidding!).

--Mike

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Mike Schway | [Picture your favorite quote here]
mschway@nas . com |
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