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From: Christopher Howard <christopher@librehacker.com>
Newsgroups: sci.electronics.design
Subject: one potentiometer dividing multiple signals
Date: Mon, 16 Mar 2026 07:21:51 -0800
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Xref: csiph.com sci.electronics.design:741707

In my analog computer setup, a very common thing is to use
potentiometers as coefficients, i.e., as voltage dividers that attenuate
an input signal. But something wasteful about this is that sometimes
multiple different signals have to be divided by the same coefficient —
for example, dividing various forces by the mass of the object. So, I
have to use multiple potentiometers for that, and I have to keep them
set to the same value.

So, I was wondering what would be the simplest analog approach to get
around this problem, without having to use expensive
multiplier/dividers. Maybe just have one potentiometer connected to a
bunch of cheap transistors? 

-- 
Christopher Howard