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03-07-2007, 02:21 AM
| #1 |
| Senior Member Join Date: Jun 2006
Posts: 556
| odd Orange problem.
So I installed a PPIMV on an Orange 120. the type with a dual 1M and the 2 extra caps. Now for some reason the V2A is clipping, becoming a pulse generator. The amp uses V2B pins 1&3 to drive the output tubes. Now here's the odd part.....if I inject a signal into the FX return jack, everything is fine, V2A amplifies great, and the MV works as it should I tried different preamp tubes. I quadruple checked my wiring, but I'm sure I'm missing something stupid. |
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03-07-2007, 03:06 AM
| #2 |
| Senior Member Join Date: Jun 2006
Posts: 556
|
Okay so apparently you need input grid resistance for a stage to amplify. The grid resistor was on the "send" jack that I removed to install a standby switch. |
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