Gretsch style "mud switch"

[fender3x]

If I understand correctly a dual value pot would be like this?



You could probably do that with a toggle switch, but it would be simpler to wire it more like the switch in your original guitarwiringblogspot pic. In fact, that pic is a mud switch.* Your toggle switch would need to be a 3 position DPDT (on-off-on) switch. In the middle position it does nothing. In the upper position it adds one of the caps to the circuit, in the lower position it adds the other. In the pic it's an alternative (or addition) to a tone pot. On a normal tone pot with the pot wide open it's not actually doing anything. That would be like the middle position on the switch. As you turn the knob on a normal pot, it shunts more and more of the high frequencies to the ground...making the sound "darker". With the switch the caps would be sort of like two preset stops on the tone control.

If what you are after is darkening the tone, I suspect that adding caps (either with a pot or a switch...or both) would get closer to the effect you want than adding a resistor or dual pot.


* I read about it here:
https://gretsch-talk.com/threads/wha...tch-etc.15313/

[EsquireEsque]

If I understand correctly a dual value pot would be like this?



You could probably do that with a toggle switch, but it would be simpler to wire it more like the switch in your original guitarwiringblogspot pic. In fact, that pic is a mud switch.* Your toggle switch would need to be a 3 position DPDT (on-off-on) switch. In the middle position it does nothing. In the upper position it adds one of the caps to the circuit, in the lower position it adds the other. In the pic it's an alternative (or addition) to a tone pot. On a normal tone pot with the pot wide open it's not actually doing anything. That would be like the middle position on the switch. As you turn the knob on a normal pot, it shunts more and more of the high frequencies to the ground...making the sound "darker". With the switch the caps would be sort of like two preset stops on the tone control.

If what you are after is darkening the tone, I suspect that adding caps (either with a pot or a switch...or both) would get closer to the effect you want than adding a resistor or dual pot.


* I read about it here:
https://gretsch-talk.com/threads/wha...tch-etc.15313/

Yes -that looks like it one pot is 500k the other 250.

My understanding is that a bypass (no cap, no tone pot) on a 250k volume pot will sound "darker" that it would on a 5ook pot.
If caps are needed for either pot - they can be put on after.

So the options would be:
500k volume pot - "normal" Filter'tron sound without a tone pot
250k volume pot - "darker" sound without a tone pot.