--- In cgs_synth@yahoogroups.com, "stiebz" <theevaporizer@...> wrote:
For whatever reason, I only had 1 volt pk-pk on the output of my 3140.
I had built this module with an MPF102 FET. I replaced the MPF102 FET
with an NTE466 since I could buy it locally. The package is a TO-18
but would fit on the pcb rotated. This FET operates correctly and and
I get a 5 volt waveform on the output of the CA3140.
Dave
>When you say 1.1 volts, is this DC or is it oscillating?
> when i wanted to test my bin-n-tic, i incidently switched + and -
> power supply. after i fixed the problem, I have no sound whatsoever.
> I measured 1.1 volt between pin6 of the ca3140.
For whatever reason, I only had 1 volt pk-pk on the output of my 3140.
I had built this module with an MPF102 FET. I replaced the MPF102 FET
with an NTE466 since I could buy it locally. The package is a TO-18
but would fit on the pcb rotated. This FET operates correctly and and
I get a 5 volt waveform on the output of the CA3140.
Dave