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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 7, 2000 at 16:28:32:
Which is "pretty low", the current across the 60K cathode resistor in the cf (5 to 6mA) or the bias on the 6C33C output tubes (280 to 300mA)?
You yourself once suggested to me that I bias the 6C33C closer to 240mA (with ca 135V plate to cathode), so I assume you do refer to the current thru the cathode resistor in my cf. Anyway, I cannot fit a tube ccs and am thinking of using a ss ccs, which can easily exceed the 60K resistor in impedance. That was my question in the first place. But are you hinting that I should use a smaller cathode resistor so that more current will flow in the cathode of my (6SN7) cf, when the output tubes achieve proper bias? Have a nice fishing trip.
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- Re: ss vs tube ccs - Lew 14:14:07 06/08/00 (0)
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