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From: Niels H - 26 May 2008, 14:22
More info and photos at: * cgi.ebay . com /ws/eBayISAPI.dll?ViewItem&rd=1&item=230256090116
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From: Niels H - 26 May 2008, 13:20
More info and photos at: * cgi.ebay . com /ws/eBayISAPI.dll?ViewItem&item=230256015829
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From: Niels H - 26 May 2008, 05:42
More info and photos at: * cgi.ebay . com /ws/eBayISAPI.dll?ViewItem&item=230256075392
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From: Keith Park - 26 May 2008, 05:01
Restored Antique Radios & TV's FS Last set of the season just Posted! * members.aol . com /radiorest/main.htm Just be sure to click on the "Radios for sale icon" to view the sets! Investing in one of my Fully Restored radios will give you the advantage of a set that has indeed been RESTORED, and not simply fixed, repaired, spiffed...
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From: Patrick Turner - 25 May 2008, 19:16
In recent posts I described the vast improvements to the noise performance and reduction of IMD of adding RCRC filtering to the anode supply so that only 0.03Vrms of hum exists at the OPT CT for the amp channels each using 4 x 300B in class AB1. I added a transistor CCS tail to the balanced drive stage which is very similar to the original Williamson...
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From: Iain Churches - 25 May 2008, 19:02
> "Ian Iveson" <IanIveson.home@blueyonder.co.uk> wrote in message > news:kvMYj.39035$EH5.37381@newsfe30.ams2... >> Iain wrote: >> >>> A lurker on this thread wrote to tell me that he has seen a >>> German built KT88 amp with a separate PSU and a DC >>> umbilical. Both units have the DKE and CE mark. >>> He has promised to try to find a link to the...
7 Posts. Last post send by: Iain Churches - Sunday 25 May
From: n13799684969@126 . com - 25 May 2008, 06:52
Discount, LRG jeans, Evisu jeans, ED hardy jeans, COOGI jeans, Gino Green Global jeans, Lacoste jeans, G-star jeans, Ked Robot jeans, Red Monkey jeans, BBC jeans, Smet jeans, Seven jeans, Trun North Face jeans, The Croun Holder jeans, Antik jeans, China Supply. Supply BOSS t-shirts, men's Lacoste T-shirts, G U C C I women's t- shirts,Polo T- shirts, BBC...
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From: Alex - 25 May 2008, 04:08
Hello, Partic Turner. Could you please again post the links to the schematics of your radios. (I forgot to bookmark them last time.) Regards, Alex
3 Posts. Last post send by: Alex - Sunday 25 May
From: Ty Unes - 24 May 2008, 06:48
I built this: * w w w .vacuumtuberadio . com /AM_Transmitter/ Mine looks like this: * 2xl.homelinux . com /riverty/dscn1643.jpg - and - * 2xl.homelinux . com /riverty/dscn1642.jpg It works. Doesn't sound very good and is not very powerful, but it works. I'm trying to diagnose if I have a problem - or - if I need to modify it to make it work...
20 Posts. Last post send by: Ty Unes - Saturday 24 May
From: cm3992799@gmail . com - 24 May 2008, 05:32
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From: Ted - 23 May 2008, 17:01
* easyurl . net /McIntoshMI75
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From: GerryE123 - 23 May 2008, 02:09
Hi: For auction on eBay, Western Electric/ALTEC 284D vacuum tubes: * cgi.ebay . com /ws/eBayISAPI.dll?ViewItem&item=230254316189 * cgi.ebay . com /ws/eBayISAPI.dll?ViewItem&item=230255164555 * cgi.ebay . com /ws/eBayISAPI.dll?ViewItem&item=230255171504 Gerry
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From: Ty Unes - 22 May 2008, 04:52
I have a power transformer with 6.3VAC filament voltage I want to use in a circuit. Is there a way to mix 6V and 12V tubes powered from this transformer? In other words, can I power 2 6V tubes and then double the voltage somehow to heat a single 12V tube? If so, I'm having trouble visualizing how to do this. Thanks.
5 Posts. Last post send by: Ty Unes - Thursday 22 May
From: Edward R Morris - 21 May 2008, 17:56
Hello, I have a 1965 McIntosh MX110 and was wanting input on what brands of coupling caps people would use to update this preamp-tuner. I usually use IC metalized polys but they can be quite bright in the H.H. Scotts I've used them in. Any advice is appreciated. Edward Morris
7 Posts. Last post send by: Edward R Morris - Wednesday 21 May
From: Iain Churches - 21 May 2008, 08:52
There has been some discussion on RAT recently about amplifier stability and RC networks. Most of us find the values for these by empirical methods, using a rule-of-thumb or two and a couple of decade boxes. I thought it might be useful to have these values calculated from 10Hz to 100kHz in an Excel spreadsheet which would also plot the impedance, Z,...
55 Posts. Last post send by: Iain Churches - Wednesday 21 May
