[sdiy] Resolution of analogue potentiometers?

cheater cheater cheater00 at gmail.com
Wed Feb 13 10:14:31 CET 2013

On Wed, Feb 13, 2013 at 9:12 AM, Magnus Danielson
<magnus at rubidium.dyndns.org> wrote:

> I don't think it's the actual resolution of the pot which is the limit,
> but rather if it is a good control interface achieving both speed of
> adjustment and fine-grained control.

Hi Magnus,
I have been wondering for some time now how a fully-analogue endless
potentiometer could be realized for this exact purpose. Any
arrangement using a permanent magnet in a coil's EM field looks
promising, but I haven't been able to find a suitable arrangement

In this case, such an endless rotary could be fed into some form of
integrator and used together with a normal rotary pot for coarse


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