L-speed current sea-saw circuit, simpler the better - diyAudio
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Old 8th September 2011, 06:59 AM   #1
diyAudio Member
Join Date: Jul 2003
Location: Dona paula, Goa
Default L-speed current sea-saw circuit, simpler the better

I have a motorized dual pot that I intended to use for the lightspeed with the remote control. The problem is that the pot does not have separate 3x2 connections. The gnd is shorted internally and is not possible to separate out as these r normally made from one film track.

I want to use the pot but now I am intending to build a simple sea-saw current circuit, i.e. one of the current should increase if the other one is decreased. I do not want to use opamps to do this. Too much to assemble and will/may need dual supplies.

Can anybody draw a conceptual transistorised circuit or point me to something to start with.

It should use a single pot and work as a normal volume would.

Gajanan Phadte
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Old 8th September 2011, 10:42 AM   #2
diyAudio Member
Join Date: Jul 2003
Location: Dona paula, Goa
I can use the same motorized pot. Just a bit of thinking and I came up with this.

Gajanan Phadte
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