Adding coincheck to silver saber uMax

[ETEXHunter]

When adding a trimmer pot in parallel with the Disc. pot, does the value of the original Disc. pot have to be changed or does one simply add the trimmer in parallel and switch the outputs?

[ivconic]

When adding a trimmer pot in parallel with the Disc. pot, does the value of the original Disc. pot have to be changed or does one simply add the trimmer in parallel and switch the outputs?

You're going to expand or narrow disc adjustment range.
With parallel pot it will be narrowed.
Better choice is to add switch.

[ETEXHunter]

I will be adding the switch. In the Shadow X2 circuit it switches the wiper of the external control to the wiper of the internal "trim pot". The question is, that since the new trim pot is paralleled with the external control, when adding the trim pot does the value of the external control have to be changed as well. I seems to me that this might be necessary in order for the resulting resistance of the parallel combination to approximate the original resistance of the Disc.pot.

Thanks much for responding...

JR

[ivconic]

I will be adding the switch. In the Shadow X2 circuit it switches the wiper of the external control to the wiper of the internal "trim pot". The question is, that since the new trim pot is paralleled with the external control, when adding the trim pot does the value of the external control have to be changed as well. I seems to me that this might be necessary in order for the resulting resistance of the parallel combination to approximate the original resistance of the Disc.pot.

Thanks much for responding...

JR

Most probably yes; you will have to change the value of external control too.
But such "math" is more than easy:

R_total = R1×R2/(R1+R2)