| ampage Tube Amps / Music Electronics |
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| previous: Jeff S. Joe, |
| Gustav | Re: building onboard active preamps piezo can put out some volts. You might want to place a diode clamp on the input (1n4148s one +9 to C a to gate 2nd C to gate and A to ground. What value gate to ground R did you use? if it is only 1 meg you might want to try up to about 5meg. for piezos |
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| Jeff S. Gustav, |