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10M pots?

Posted: Sat Mar 14, 2020 1:37 am
by FAP
Am I missing something? Why is it any potentiometer bigger than 1M either doesn't exist, or if it does exist it's rare and outrageously expensive? I have no trouble finding 10M resistors, nor 1M pots: I find it hard to believe there wouldn't be any demand for higher Mohm value pots. Even trimpots/precision stuff in the higher Mohms suffer the same fate. What gives?

Re: 10M pots?

Posted: Sat Mar 14, 2020 3:42 am
by NoiseWiki
FAP wrote: Sat Mar 14, 2020 1:37 am I find it hard to believe there wouldn't be any demand for higher Mohm value pots. Even trimpots/precision stuff in the higher Mohms suffer the same fate. What gives?
Well considering that most electronics are probably digitally controlled these days then there probably isn't a demand

Re: 10M pots?

Posted: Mon Mar 16, 2020 2:47 pm
by timdrage
I have/had some but they were ancient and gigantic. 2m are easy-ish to find in my experience

I think their scarcity is because in most circuit-design situations you'd change other components in order to avoid needing 10m pot to get the desired range of operation. But of course yeah they are great for circuitbending purposes

Re: 10M pots?

Posted: Mon Mar 16, 2020 3:05 pm
by FAP
Well thankfully I have plenty of 10M resistors, so I can at least add some DOOM
megaman

Re: 10M pots?

Posted: Mon Mar 16, 2020 4:32 pm
by NoiseWiki
I mean if you really need that much range just pit some in series or a switch to toggle a high base resistance

Re: 10M pots?

Posted: Mon Mar 16, 2020 5:04 pm
by FAP
...which is probably what I'll end up doing, with the resistors I mean. A bunch of pots in series is just so wasteful.

Re: 10M pots?

Posted: Tue Mar 17, 2020 3:38 am
by timdrage
These days I usually give most things a kind of course + fine control with 2 pots in series

actually more like course + course usually, eg 2x 2m pots :)

Re: 10M pots?

Posted: Tue Mar 17, 2020 6:12 am
by NoiseWiki
FAP wrote: Mon Mar 16, 2020 5:04 pm ...which is probably what I'll end up doing, with the resistors I mean. A bunch of pots in series is just so wasteful.
Yea especially if you don't need the full range to be variable

Re: 10M pots?

Posted: Thu Mar 19, 2020 4:07 am
by timdrage
Most bent things I make I include an optional LDR in series too, they usually have a pretty extreme range.

Re: 10M pots?

Posted: Thu Mar 19, 2020 7:51 am
by FAP
timdrage wrote: Thu Mar 19, 2020 4:07 am Most bent things I make I include an optional LDR in series too, they usually have a pretty extreme range.
Ohohoho yeah, just learned that recently. Shouldxe2x80x99ve tried that out years ago.