Potentiometer 120/150K

[Deleted]

I am after a Potentiometer 120/150K
I think the size is called 17mm
Dual if you can would be a delightful but worse case single

Unless anyone know how I could make one , IE a wafer with a resistance of 120/150K

Best I can find is 100K and at a push 200K , I'd sooner not double up 250K to make a 125K

[newey]

Not exactly what you are wanting, it's 24mm (standard pot size), not the 17mm "mini" pot size. And it's linear taper. Also, the shaft is a "D" shaped type, meaning limited knob choices. The shaft also needs to be cut to length It is 6.3mm dia., so standard 1/4 inch knobs will fit, if you can find the D-shaped ones. But it's 150KΩ.

www.mouser.com/ProductDetail/BI-Technologies-TT-Electronics/P230-1FD20BR150K?qs=56eeD6vBg8jbPiQGxJk3jA%3D%3D

[thetragichero]

this may be a helpful read for you: www.geofex.com/article_folders/potsecrets/potscret.htm

[Deleted]

Mar 29, 2022 7:49:03 GMT -5 thetragichero said:

this may be a helpful read for you: www.geofex.com/article_folders/potsecrets/potscret.htm

dosnt intrest me .. after a 17mm 120/150K Pot because i want to make a 2nd wafer to fit with it
so even if i hope to do 250K and join them so to make it 125K
but i lose my second wafer so no good for me .. unless i get a QUAD POT, but im not keen on playing with them as i like to put the system on a Push/Pull so i need only two wafers
one for the POT and one to help it with some kind of switching system

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I'm currently trying to design a 3 Bit Switch that attaches to a Pot so i can have Two systems in one
I like the 3Bit because it will let you pick between 3 Pickups and it only needs 2 Tracks

[thetragichero]

parallel resistor on outside lugs so you can get your intended value doesn't interest you? weird

[JohnH]

Depends on what's most important about hitting those values. A parallel resistor between outer lugs of 390k gets close to the overall target using a 250k pot, may bdhave as a higher value at mid turn. Or, two of them, one between each outer lug to the inner lug hits the target at min or max rotation and produces about 190k overall at mid position. Taper is also affected though.

Or, if you can disassemble (tricky with duals), I'd expect you could scape a 100k track to get it up to 120k.

[Deleted]

Two 250K means I use both wafers I wanted to use the second wafer


100K might be too small
I don't really want to go too far below 125K

I think my only hope is 250K pot
With 220K between lug1&2 and 220K between Lug2&3

[Deleted]