Design Challenge #3 - C10K/A250K dual-gang pot

[Chuck D. Bones]

Design a pedal circuit using this:



It's a Dual-Gang pot with one section C10K and the other section A250K. EG sells 'em. I've picked up a couple dozen when they went on sale. Could be useful for filters, gain controls, LFOs, etc.

 

[cooder]

Funny that I have one of those as well....

 

[pbrommer]

Some kind of tube preamp that brings in more mids/light bass cut as you bring up the volume? And could they work opposite - wire the C10K 3-2-1 and the A250k 1-2-3?

I dunno. Taking a stab at it.

 

[cdwillis]

I've been playing around with the bluesbreaker/crunchbox style circuits lately, so this is where my mind went:



Not sure the sweep would be great considering the different values of the pots. It might be helpful to tweak the amount of gain in each gain stage.

 

[Chuck D. Bones]

That will have a much smoother sweep at each end of the GAIN pot's travel. One thing, it's necessary to adjust the values of the 10K, 220K, 6.8K & 100nF in proportion to the C10K pot.