Multi turn trimpot trimmer potentiometer component introduction by electronzap learning electronics

[@Electronzap]

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[@jaymclemore9497]

I really enjoy these simple breadboard videos. I always learn something. I never knew what the numbers on the trim pot meant until now. Thanks!

[@Electronzap]

Glad to hear! Some of my best performing videos are similar to this one, so I will probably be making them more often.

[@tarunarya1780]

Thanks. The main part I was interested in was what happens at the ends of turning it. I had a NE555 module with one of these and wanted to turn a specific frequency and ideally pwm. When I kept turning the screw in one direction the freq on the oscilloscope would oddly go up and then down. Not really sure what was going on, but thanks for the video.

[@Electronzap]

I haven't looked up how they work internally for a while. I know that the screw should keep turning when you reach the end and reengage right away when you turn in the opposite direction. I think that if you keep turning it in the same direction after you reach the end, that it will probably keep contacting slightly different parts of the resistive element.

[@legarishere]

thank you so much

[@Electronzap]

Thanks for watching!

[@mikeberger1688]

what's the trick to get a standard trimmer to be a fine adjustment trimmer?

[@Electronzap]

Can't really make a trimmer to have more fine adjustment. You can put a low value trimmer in series with a fixed value resistance that is most of the resistance needed, and then use the trimpot to make smaller changes with less range. If that is a possibility.

[@rodriguezfranco3839]

Those little trimmers are driving me crazy , can't find the zero lol I keep turning it and nothing , I prefer the one turn ones

[@Electronzap]

Yeah, I don't think there is a zero ohm area with the multi turn.