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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Re: ss vs tube ccs posted by Victor Khomenko on June 6, 2000 at 19:46:12:
You are a smart guy, Viktor. I made an error. The Atma, as you know, has a bipolar supply to the driver stage, and I frequently forget to account for the B- supply voltage. Actually, about 350V are dropped across the 60K cathode resistors, for a bias on the output tube of ca 5 to 6mA. The output tubes are 6C33Cs, and I bias them at 280 to 300mA. The voltage amp section is a dual diff/cascode topology, and the cf is simply to provide a low impedance to the output tubes.
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Follow Ups
- Re: ss vs tube ccs - Lew 12:06:27 06/07/00 (2)
- Re: ss vs tube ccs - Victor Khomenko 16:28:32 06/07/00 (1)
- Re: ss vs tube ccs - Lew 14:14:07 06/08/00 (0)
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