[sdiy] triple concentric pots

Veronica Merryfield veronica.merryfield at shaw.ca
Tue May 8 03:48:01 CEST 2007


>>There seems to be confusion about what is a 'concentric" pot and what is a
>>"ganged" pot.
Paul had this bang on which is why I asked about concentric pots.

>Veronica, dare I ask *why* you "need" such a pot?
You can always dare to ask :)

>And do you really need concentric, or did you mean ganged?
I really do mean concentric and triple and with a push/pull switch as well.

As you might have concluded from my delurk post, as well as doing the synth 
thing, I am also a luthier. I have been asked to make a few EUBs and I have 
made a prototype of a headles EUB. There isn't much body space. For a blend, 
volume and tone controls only option I have enough space to fit them but I 
have a client that has asked about parametric EQ and several channels to 
boot. For space reasons, it would be nice to put the boost/cut, frequency 
and Q on a single concentric pot along with a push/pull switch to turn each 
channel on and off. I know that some of the better analogue scopes used to 
have triple concentric pots with push/pull but I doubt these days such pots 
can be found. I was asking here to double check the collective wisdom.

>>... (with ridiculously long shafts and very odd knobs).
>Oh, my, there's the straight line of the day!
Great line eh :)

Veronica




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