have anyone schematics/pcb to relay input selector for preamp...?
and i need volume control (3*23?!) too?!
and i need volume control (3*23?!) too?!
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 www.goldpt.com
As for volume controls, try www.goldpt.com
check out this thread:
http://www.diyaudio.com/forums/showthread.php?s=&threadid=3567&highlight=relay
http://www.diyaudio.com/forums/showthread.php?s=&threadid=3567&highlight=relay
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
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
Attachments
You might find the following link of interest
<a href="http://www.ultranalog.com/989/989.html"><img src="http://www.ultranalog.com/989/989start.jpg" alt=""></a>
<font size="-3">Pics a link</font>
Regards
James
<a href="http://www.ultranalog.com/989/989.html"><img src="http://www.ultranalog.com/989/989start.jpg" alt=""></a>
<font size="-3">Pics a link</font>
Regards
James
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