Semi-sweet 3 distortion PCB
- Thread starter stebur64
- Start date
owlexifry
Well-known member
read the schematic (and build doc).
you need a dual gang B10K pot.
10K OHM Linear Dual Taper Potentiometer PCB Mount Round Shaft Dia: 6mm
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this is because the 'LOCUT' control is simultaneously adjusting x2 variables at the same time.
It's a dual pot. And yes, if you want it to sound like the original. Each element is part of a dual pole filter.
If you look at the schematic, there are 2 passive filters there, one on each element. Quick glance, one CR. One RC. Kind of a BMP tonestack, but separated into individual parts.
If you don't have the ability/desire to get the dual pot, you could invert one pot and mount it in the lower holes, settle one for being a resistor/trimmer.
A 2 pot setup would actually be the most flexible across all cases. If you don't need/want to cut lows.say for bass use, only wire the LPF side.
Just take note that if you use a normal pot(s), the drill holes likely won't align.
If you wanted, you could omit R15 and that portion of the dual pot and populate R14 with a 5-10k trimmer and tune the high cut by ear.
Not true to the og circuit but doable.
That portion of the circuit is cutting high frequency before the following clipping stage. The next part, the other half of the pot, is cutting lows after clipping.
I would advise a multi turn trimmers in this instance but it's doable with a single turn. It's just going to be very touchy.
Not true to the og circuit but doable.
That portion of the circuit is cutting high frequency before the following clipping stage. The next part, the other half of the pot, is cutting lows after clipping.
I would advise a multi turn trimmers in this instance but it's doable with a single turn. It's just going to be very touchy.
