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Old 3rd April 2012, 04:55 PM   #1
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Default Selector switch

Hello.

I am putting together a volume buffer, and I need an allright selector switch, either rotary or toggle for 3 inputs. What specs am I looking for then? Any suggestions?

I wanted the pcb from glassware but its allways sold out...
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Old 4th April 2012, 11:49 AM   #2
AndrewT is offline AndrewT  Scotland
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strip the switches/selectors from an old integrated amplifier.
or
buy a 12segment rotary. They can be configured as 12W 1pole, 6way 2pole, 4way 3pole, 3way 4pole and 2way 6pole (very uncommon).

You need the 3way 4pole.
The two spare poles could switch indicator LEDs or something.
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Old 4th April 2012, 01:37 PM   #3
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Why not to use a digitally controlled switch: a CD4053 and a CD40162/3 and a two push buttons switch. It´s easy and noiseless. Only need +-5V @ 1mA
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Old 4th April 2012, 04:11 PM   #4
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Quote:
Originally Posted by Osvaldo de Banfield View Post
Why not to use a digitally controlled switch: a CD4053 and a CD40162/3 and a two push buttons switch. It´s easy and noiseless. Only need +-5V @ 1mA
A switch does not need a power supply..even simpler
Besides, I like the looks.
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Old 4th April 2012, 05:19 PM   #5
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In my audio set, the 8 inputs are selected via a HCF4051 (one per channel), and they work fine, no pops, no false contact, etc. And a simple frequency counter and two buttons acting as "up" and "down" in the #of input selected, a debouncing cap. are the best solution. Power is requiered because the HCF4053 acts like a 8 position 1 pole relay, and only 100R between "contacts".

Simply: extraordinary.
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