replace pot with electrically controlled "device"

Started by Frances Rhodes, May 26, 2016, 04:48:48 PM

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samhay

Quote from: balkanizeyou on June 01, 2016, 08:19:41 PM
I have a similar problem - I wanted to build a pedal consisting of 6 different overdrive/distortion/fuzz pedals with a 2P6T rotary switch to choose between them. All the circuits would have a gain, tone and volume pot, so for my convenience I'd like to have only three potentiometers in my box, each controlling gain, tone and volume of all 6 circuits at the same tame.

6P6T and 8P6T rotatry switches can be found easily enough. They are not cheap, but if you can work out how to fit one in your enclosure (they aren't miniature), then it will probably save you a lot of supporting circuitry needed to do it any other way.
I'm a refugee of the great dropbox purge of '17.
Project details (schematics, layouts, etc) are slowly being added here: http://samdump.wordpress.com

MatthewStomp

Karlsson Robotics sells this "Digital Potentiometer" $1.50 DIP chip that sounds like it fills exactly the need of replacing a pot with an electronically controlled device:
https://www.kr4.us/digital-potentiometer-10k.html

Won't that work?


baklavametal

Problem with this digital pod (as with many others) is that resistor terminal voltage is for range 0V-5V which would probably introduce distortion or lockup with stronger guitar signals