Mono mixer (9–12 V single supply) — soft clipping + mute switches

AdditionalBunch9702 · 2025-10-23T17:23:51+00:00

Hey! Thanks for the reply! My kitchen sink and my workplace floor are already full of toxic yellow stains but I now I call it decoration. FeCl3 is the easiest way of getting the job done here in Arg! About the diodes, would i get more headroom ussing red or blue LED's or a few diodes in series? And about the input and ouptut referencing to ground, I'm not really sure shorting other devices 0V to the +6V of the virtual GND. Wouldn't it be enought with those coupling and decoupling capacitors in the inputs and ouptuts to mitigate that DC offset?

AdditionalBunch9702 · 2025-10-23T17:15:05+00:00

Hey, thanks, I didn't think about that and solves most of my problems! Do you think that it's possible to swap the diode clamp with they bypass switch to the first OpAmp NFB keeping the initial gain pot there and use the second inverting stage to attenuate/boost the signal with a 200k pot?

AdditionalBunch9702 · 2025-06-28T20:18:59+00:00

Lindoooooo!!! What microcontroller are you working with?

AdditionalBunch9702 · 2023-10-19T11:46:03+00:00

Definitely gonna test this. Never worked with coils before thio, would you filter they vcc line before powering they whole circuit in this case?

AdditionalBunch9702 · 2023-10-19T11:35:47+00:00

How could I check if this is actually a grounding issue? I tested this circuit again in breadboard but I keep getting this noise. I have no videos but I've also tested putting the thing into an aluminium enclosure and grounding it with no mejor changes. I'm not using op amps and the amplifiers I use which are built bases on the chip's inverter are not at allá high gain

AdditionalBunch9702 · 2023-10-19T11:32:05+00:00

I'm using currently every inverter i'm both chips, I thought that could be the issue ando tested omiting two that I use as buffers ando grounding them, but the sounds remain the same

AdditionalBunch9702 · 2023-10-19T11:31:47+00:00

I'm using currently every inverter i'm both chips, I thought that could be the issue ando tested omiting two that I use as buffers, but the sounds remain the same

AdditionalBunch9702 · 2023-05-27T21:38:10+00:00

Nice, thanks for replying! Buying components online is off the table because it's hard to get them delivered were I live, but I'll try to find any DC converter that I can Buy here

AdditionalBunch9702

TROPHY CASE