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macgyver 5th October 2002 04:14 PM

relay input selector
have anyone schematics/pcb to relay input selector for preamp...?
and i need volume control (3*23?!) too?!

jwb 5th October 2002 04:54 PM

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

gilid 5th October 2002 11:17 PM

check out this thread:

LBHajdu 6th October 2002 06:17 AM

My idea
2 Attachment(s)
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. :idea:

Levente Hajdu

nar 6th October 2002 02:33 PM

Seems you are not on the good thread guy:hypno2: :hypno2:

tvi 6th October 2002 03:41 PM

You might find the following link of interest
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<font size="-3">Pics a link</font>


NHul 7th October 2002 07:33 AM

Check this :[URL=w]



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