Trimpots

[sbonasuk]

Good Evening

I use 100k trimpots with a single turn configuration to cool the piezos, and whilst i'm in the process of moving from 3.5mm to 6.35mm output jacks and a new case I thought that I would change the pots as well. I noticed that the difference between hot and cool is sometimes almost an imperceptible movement on the pot, so would moving to say 50k or less give a wider margin of adjustment?

The trimpots are in between the megadrum output and the jack socket is there any benefit or difference moving them to the piezo end?

Thanks all

[dmitri]

With the 100k trimpot find the best position. After that measure impedance of the trimpot between pins you used. Say you got 10K. Use a 20k (2x10k) trimpot instead of 100k after that. Or better yet (cheaper) use a simple 10k resistor.