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 WTB: amp book

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Tube Radio



Posts : 31
Join date : 2010-10-12

PostSubject: WTB: amp book   Sat Oct 16, 2010 4:22 pm

I am looking for a book titled "The G.E.C. 912-PLUS". I have built the amp from the book "An Approach To Audio Frequency Amplifier Design", but the only specs it lists are the operating conditions for the output tubes and I have ran into a problem that requires me knowing all the voltages in the amp. Basically I had to rework the power supply to get 300 Vdc on the plates of the 6BQ5 tubes like the specs call for which reduced the voltages to the other tubes.

Also if anyone has the book and doesn't want to sell it I just need the voltages and where on the schematic those voltages are found. That way I can be sure my amp is operating properly.
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glasdave

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Location : Aurora Colorado

PostSubject: Re: WTB: amp book   Sun Oct 17, 2010 4:16 am

Don't know if this will help, but, here you go,http://www.scribd.com/doc/34672356/GEC-Approach-to-amplifiers.
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Tube Radio



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PostSubject: Re: WTB: amp book   Sun Oct 17, 2010 8:35 am

I`ll look at that when I get home.
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Tube Radio



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PostSubject: Re: WTB: amp book   Sun Oct 17, 2010 12:24 pm

That's the book I already have and it don't give any voltages except the operating conditions of the 6BQ5 tubes.
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