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Hoffman Amps Forum image Author Topic: 6v6 Plexi Build Problem  (Read 1733 times)

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Offline GS1100

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6v6 Plexi Build Problem
« on: July 03, 2015, 03:36:55 pm »
Hey guys, trying to get a 6v6 plexi off of the ground. I get no sound static, hum or otherwise. Voltages look good except for V3: pin 1 193V, pin 6 188V, pins 3 and 8 81V. Same numbers with different tubes. I've double checked my wiring and component values, all good. Voltage off of the 3rd filter cap (C in the schematic) is 260V, 4th cap is 224V. Any ideas?

Offline shooter

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Re: 6v6 Plexi Build Problem
« Reply #1 on: July 03, 2015, 05:21:42 pm »
Quote
pins 3 and 8 81V

guessing one of your "tail" R's is wrong.  Could also disconnect the NFB for testing, the other values seem * close enough* for now.
Went Class C for efficiency

 


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