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13th February 2010, 09:58 PM
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#1 |
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diyAudio Member
Join Date: Jan 2010
Location: Cornwall
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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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13th February 2010, 11:15 PM
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#2 |
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diyAudio Member
Join Date: Mar 2007
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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.
__________________
"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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13th February 2010, 11:24 PM
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#3 |
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diyAudio Member
Join Date: Jan 2006
Location: Johannesburg, South Africa
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Something from an electrol-mechanical telephone exchange?
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