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Old 5th October 2002, 04:14 PM   #1
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Question relay input selector

have anyone schematics/pcb to relay input selector for preamp...?
and i need volume control (3*23?!) too?!
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Old 5th October 2002, 04:54 PM   #2
jwb is offline jwb  United States
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I used a board of relays for the input selector on my BoSoZ preamp, but I woudn't bother drawing schematics. I just wired +5V through a switch to a bunch of DPST relays.

As for volume controls, try
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Old 5th October 2002, 11:17 PM   #3
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check out this thread:

Relays as input switch?
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Old 6th October 2002, 06:17 AM   #4
LBHajdu is offline LBHajdu  United States
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Default My idea

I have an idea, however have not yet built it, so I can't say for shore that it works . I would like you all to take a look at it and tell me what you think. It's drawn up in this drawing for 3 inputs with 6 channels, but this can be scaled up or down. The circuit uses 6 normal relays and 2 latching relays. The user selects the input by pushing one of 3 momentary push buttons. Besides these parts the only other part in the circuit is 3 diodes, no other semiconductors are used. The simplicity of this circuit is worthy of Mr. Pass himself. Tell me what you think.

Levente Hajdu
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Old 6th October 2002, 02:33 PM   #5
nar is offline nar
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Seems you are not on the good thread guy
"... Audio needs the thinnest wire ..." Rowan McCombe ... I hear it !!!
"Just 'cause they can't hear or sense it themselves doesn't mean you can't !" Allen Wright Allen was right ...
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Old 6th October 2002, 03:41 PM   #6
tvi is offline tvi  Australia
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You might find the following link of interest
<a href=""><img src="" alt=""></a>
<font size="-3">Pics a link</font>

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Old 7th October 2002, 07:33 AM   #7
NHul is offline NHul  Croatia
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Check this :[URL=w]

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