Electronics > Beginners

Dial for 3296W potentiometers

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JoeP:
I've bought a set of 3296W potentiometers for use in various electronics projects, however they aren't the easiest to turn. It seems obvious that they are intended to be used with a screwdriver, but I was wondering whether anyone's made a dial that just clips on?



Thanks,
Joe

ArthurDent:
Unless you want to replace them with panel mount pots with counter dials at $$$ then what I do is use an alignment tool (see photo) designed to not slip off the tiny adjustment screw and use a Sharpie to place a mark on the tool so I can keep track of where I've turned the screw.

Richard Crowley:
That is a 10-turn trim pot. The photo shows the style with screwdriver adjust.
Nobody makes after-market knobs for that style pot because there is not enough shaft to connect to.

There are OTHER styles of trim pots with knobs.  Here is a style with an extended, knurled shaft that can be turned with your fingers (or with a screwdriver).



And here is a single-turn pot with built-in knob.

Wimberleytech:
Just for kicks, I drew this up and printed it.  It works, but a screwdriver is probably a better solution.

JoeP:
Nice one! I was thinking something like that would be possible. I've managed a much more crude solution - soldering the leg of a resistor into the groove. It works okay, but bends quite easily and isn't exactly the most comfortable to use.

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