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|    rec.audio.tubes    |    Tube-based amplifiers... that go to 11    |    52,877 messages    |
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|    Message 51,159 of 52,877    |
|    Richard to All    |
|    Re: Test circuit for 35W plate dissipati    |
|    13 Oct 10 20:54:48    |
      From: none@ntlworld.com              I said:              > I think to check for gassiness I need to get a reading of grid current.       >       > I have a 200uA meter. Should I place this in series in the g1 circuit       > and get a reading? Or read voltage across the 1k0? If so what voltage       > would I be looking for? How should I get an indication of grid current?              Well, I put the 200uA meter in series with the 1K0 resistor, or with the       wire that goes to g1.              If this correctly reads grid current, then it looks like I've no grid       current on one two and about 4uA on the other.              What is acceptable grid current for a GEC KT88?              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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