In Reply to: RE: Have I got this right? posted by sony6060 on September 16, 2014 at 16:18:05:
I measured the voltage across the 400 ohm cathode resistor and it's about 13.5 vdc at 360 vdc. Using I=E/R that gives me about 34 mA, so it looks like you are right.
The next question would be how close can I come to the 200 mA given as the mA's available on my power transformer? I would like to run 3 tubes per channel so I would be needing 204 mA if they are all the same, which I suppose is unlikely. So I guess to be safe I will have to quit at two tubes for now. That would leave some spare mAs. It's a Hammond 278x, 400v ct 400v, with separate windings for the rectifier and the filaments of the 6bq5's. The only load on the 200 mA will be the current for the tubes I think.
Edits: 09/17/14 09/17/14 09/17/14 09/17/14
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Follow Ups
- RE: Have I got this right? - vinnie2 05:45:46 09/17/14 (0)