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Old 13th February 2010, 10:58 PM   #1
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Default Motorized selector switch

Hi,

I am thinking of building a pre-amp with IR control which will control the volume using an ALPS motorized pot, but I want to be able to change the input using some kind of motorized selector switch. Does anyone know where I can get one from?

Thanks
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Old 14th February 2010, 12:15 AM   #2
star882 is offline star882  United States
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A long time ago, computers used "counter" relays for memory. Pulse the coil and it switches to the next state.

Nowadays, the solution is a rotary encoder, a microcontroller, and a multiplexer.
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"Fully on MOSFET = closed switch, Fully off MOSFET = open switch, Half on MOSFET = poor imitation of Tiffany Yep." - also applies to IGBTs!
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Old 14th February 2010, 12:24 AM   #3
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Something from an electrol-mechanical telephone exchange?
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Old 16th February 2010, 04:54 AM   #4
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Yamaha amps had it, some years back.
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