Resistor across pot values

Started by SprinkleSpraycan, August 13, 2023, 12:39:17 PM

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SprinkleSpraycan

Okay, I need a dual gang b10k pot. But I only have b50k dual gangs. So I soldered a 15k resistor across the outside lugs. But I hit 10k around 7oclock, spike up to 16k around 2oclock and then down to 10k fully clockwise.

Why? How to I get rid of this hump?

I've used this method before without this problem albeit on larger values. Confused.

idy

The R goes from the wiper to one of the outside lugs.

Phend

#2
https://www.diystompboxes.com/smfforum/index.php?topic=66471.msg528211#msg528211

Look at reply #19 on this topic
Plus the rest of the reply's for the nitty gritty of doing this.
And downfalls of such.
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Do you know what you're doing?

Rob Strand

If it's for some sort of frequency control you might be better off using frequency caps 5 times smaller. 
Always pays to check if the change affects any surrounding circuit.
Send:     . .- .-. - .... / - --- / --. --- .-. -
According to the water analogy of electricity, transistor leakage is caused by holes.

SprinkleSpraycan

Quote from: Phend on August 13, 2023, 02:28:21 PM
https://www.diystompboxes.com/smfforum/index.php?topic=66471.msg528211#msg528211

Look at reply #19 on this topic
Plus the rest of the reply's for the nitty gritty of doing this.
And downfalls of such.

Yes! Thank you. Lots of good information on that thread.