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Old 5th December 2008, 03:29 PM   #1
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Default dual resistance potentiometers.

I'm making a preamp for my bass guitar . The circuit design is almost complete apart from a problem i have run into with the volume pot. the volume pot needs to recieve the input signal from the passive circuit and the active circuit. The active would need a volume pot of around 25K ohms and the passive would need a pot of 250K ohms.

Is it possible to get double ganged rotary pots like this, that have 2 resistor tracks, 2 inputs and a single or double output? (basically 2 pots built into one, with only control shaft)


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Old 8th December 2008, 01:12 PM   #2
impsick is offline impsick  United States
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you can find dual element dual concentric pots. that would be one shaft that is split in two so that there are two separate control knobs stacked. 25k and 250k might be a special order but you can find it.Click the image to open in full size.
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Old 8th December 2008, 01:35 PM   #3
poynton is offline poynton  United Kingdom
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Special order ? What's that?

Buy 2 dual pots, identical except one at 25k and one at 250k

Dismantle by carefully unbending the tabs and reassemble with one 25k and one 250k.

Simple, eh?

Andy
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Old 8th December 2008, 02:36 PM   #4
impsick is offline impsick  United States
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Quote:
Originally posted by poynton
Special order ? What's that?

Buy 2 dual pots, identical except one at 25k and one at 250k

Dismantle by carefully unbending the tabs and reassemble with one 25k and one 250k.

Simple, eh?

Andy
thats actually did sound easy. but at least with the one shown in the image that wont work. the shaft goes all the way through and is then crimped on like a rivet or what not.
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