What's good, my dudes. Having trouble with the Aion VH Drive Channel build. It's a pedal version of the Ampeg VH-140C preamp.
With the volume pot fully CCW I'm still getting a very faint signal. It's a little distorted, quite ugly sounding, sounds a little like crosstalk to me.
It seems to originate from before any of the controls because none of the pots have any effect on the tone or level of the signal. It always stays the same.
Turning the volume pot CW brings up the actual output from the pedal as intended but it overlaps with the other signal. At max volume this isn't much of an issue but at lower settings both signals can clearly be heard and it's not a good sound.
You can find the schematic, the board layout, wiring and a picture of the actual build below. If you need more pictures let me know.
I also uploaded a short clip with actual audio: Link to SoundCloud
You'll first hear the volume pot on 0, then volume pot turned up slightly, then maxed out and finally on 0 again. For the first two segments I bumped the volume up by 20 dB in post because they were so quiet in contrast to the pot maxed out.
Is there anything in the schematic that might explain this behavior? Or could it be a crosstalk issue due to the PCB layout? This is only my second build so I'm not too knowledgable yet about any of this stuff.
There's also issues with squealing at high gain and volume levels, might be due to my wiring, it's all very close together. A buffer pedal in front fixes this so I can live with that for now.
With the volume pot fully CCW I'm still getting a very faint signal. It's a little distorted, quite ugly sounding, sounds a little like crosstalk to me.
It seems to originate from before any of the controls because none of the pots have any effect on the tone or level of the signal. It always stays the same.
Turning the volume pot CW brings up the actual output from the pedal as intended but it overlaps with the other signal. At max volume this isn't much of an issue but at lower settings both signals can clearly be heard and it's not a good sound.
You can find the schematic, the board layout, wiring and a picture of the actual build below. If you need more pictures let me know.
I also uploaded a short clip with actual audio: Link to SoundCloud
You'll first hear the volume pot on 0, then volume pot turned up slightly, then maxed out and finally on 0 again. For the first two segments I bumped the volume up by 20 dB in post because they were so quiet in contrast to the pot maxed out.
Is there anything in the schematic that might explain this behavior? Or could it be a crosstalk issue due to the PCB layout? This is only my second build so I'm not too knowledgable yet about any of this stuff.
There's also issues with squealing at high gain and volume levels, might be due to my wiring, it's all very close together. A buffer pedal in front fixes this so I can live with that for now.
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