[sdiy] Driving Relays from an LFO

[Anthony Rolando]

Well, you are def. right on about the 4066 being a better way to go...

Those boxes look very cool though!
Any idea what type of signal they are EXPECTING?

You could build a buffer and experiment, that should provide adequate 
protection for your X0X or whatever...

You could probably put together a 4066 based switching system just as 
quickly, and then drop it into the cool looking box, using all the plugs and 
what not.

TR



>From: Loscha <loscha at gmail.com>
>To: "synthesizer diy electronics" <synth-diy at dropmix.xs4all.nl>
>Subject: [sdiy] Driving Relays from an LFO
>Date: Fri, 20 Apr 2007 20:53:24 +1000
>
>For reference; I'm writing this email because I have some of this
>technology http://www.loscha.com/forsale/relay.jpg (it was on ebay,  I
>was the seller, and I have more, which I wish to use for
>"stuff")......
>
>Ok, so, I've got an LFO, say, a 555 based something or other, or a
>CGS58 or similar (http://www.cgs.synth.net/modules/cgs58_lfo.html) and
>I want to make the square waveform drive some relays.
>I obviously don't want to just start plugging relay coils into my
>circuits willy nilly cause I don't want to cook them. I know the 555
>is a player, and can handle the juice, but, If I had a Moog, or a
>roland system X00, I'd be pretty foolish to just plug relays in.
>
>Example application
>
>audio in goes into relay;
>signal switches between 2 different guitar pedals
>signals mixed in together through to audio out
>
>I know that doing this sort of routing is not best done with relays,
>that complimentary pairs of 4066s would be better -- use less current,
>not have a millisecond delay time and so on, but, I have a bunch of
>these boards with relays & banana plugs in them, and I'm trying to
>find a use for them.
>
>thanks for any suggestions, ladies and gents.
>
>best wishes;
>Edward r Jones
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>Synth-diy mailing list
>Synth-diy at dropmix.xs4all.nl
>http://dropmix.xs4all.nl/mailman/listinfo/synth-diy

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