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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: Tew kewl, Gus! posted by Poindexter on July 19, 2006 at 20:02:25:
I was measuring 6.2ma at the 5965 cathodes. No measurable distortion difference between the CCS and the 25K resistor. I was using a 6AU6 and I also regulated the -140 at 150v with an 0A2.Now I really need to get rid of that -150v supply. Reason I am tapping bias voltage from it and the drop to 32volts is too great. I want to keep it at two power tranneys. So tonights test is a solid state CCS using a pair of 2n2222 and an LED fed with -12v. This way I can have a more reasonable bias supply that also feeds the CCS.
I considered regulating the +300 to the 5965 plate loads but with a CCS in the cathodes, it makes little sense, don't you think?
Gus
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Follow Ups
- Pentode CCS worked! - gusser 18:11:34 07/20/06 (1)
- Re: Pentode CCS worked! - Eli Duttman 15:52:09 07/21/06 (0)
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