preamp tubes

Re: Tubes

Jochen,

You may have seen this-- re; power output tubes. I think it's a great
reference.

http :// www .watfordvalves,com /cgi-bin/documents/testreport 44.pdf

Regards,

mvm

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://www .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 ...
>> www .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 ...
>> www .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 ...
>> www .watfordvalves,com /product detail.asp?id01
>> >
>> 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 ...
>> www .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=widthv2,toolbar=no,menubar=no,scrollbars=yes,resizable=yes ...
>> upscaleaudio.3dcartstores,com /product.asp?itemide&catid‡
>>
>>
>>
>>
>
> 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

Thanks Jochen, great point. I'm not an amp tech so size didn't come to
mind in my recommendation of the Winged C's. Thank you, Marc

Re: preamp tubes

Picasso wrote:
> 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.

https://www .tubeworld,com /index high.htm

Re: preamp tubes

Picasso wrote:

> 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).

I've used to good effect a high-gain EI in this amp as well as some
Chinese (Beijing) 12AX7s