Dual gang pot to Single gang - Better in serie or parallel ?

ruffrecords said:

If you want it to be a potentiometer you have to use two in parallel.

Cheers

Ian

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elskardio said:

...I need a 100k pot...

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1- Use a 200k pot with 2 gang in parallel
2- Use a 50k pot with 2 gang in series

Is there any difference? Which one will be more precise?

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Harpo said:

...is missing a lot of info needed , IE what taper (lin, log, rev.log, S-taper, ..., %value at 50% rotation, ...), total rotation angle (electrical and/or mechanical), next to outer dimensions, shaft diameter and type, pin spacing, ...
With a perfect pot (there is no such thing), wired as rheostat and ignoring parts rating, both will be the same on paper. In real life and depending on circuit, a series connected 2gang rheostat has a doubled up chance of losing a wiper connection one day.
I am not aware of a method of hooking up two series connected gangs (2) mimicking a single pot and keeping the total value, so this will differ from (1). Besides higher cost and larger outer dimensions, a dual gang 200K pot will be even harder to get than a same type and taper 100K pot.

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Harpo said:

Should operate the same on paper. Operating torque of 4 gangs might be higher than of 2 gangs, if this matters to you.

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