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From: tomb@hplsla.HP.COM (Tom Bruhns)
Newsgroups: comp.sys.cbm
Subject: Re: Commodore 64: How do you control a simple AC relay?
Message-ID: <6580007@hplsla.HP.COM>
Date: Tue, 3-Nov-87 11:55:01 EST
Article-I.D.: hplsla.6580007
Posted: Tue Nov  3 11:55:01 1987
Date-Received: Sat, 7-Nov-87 09:43:12 EST
References: <2955@bnrmtv.UUCP>
Organization: HP Lake Stevens, WA
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Re:  Turning AC power on/off from a C64.  Gosh, this should be easy.
I don't know of existing hardware to do it -- but there probably is
some.  If there isn't, and there is a market for it, seems like an
opportunity.  There are plenty of parallel lines available out of the
various connectors on back.  In fact, you could probably drive a
relay directly from the cassette port, since it provides switched
power enough to drive the cassette (that assumes you don't want to
use a cassette in this system you're putting together -- also assumes
a single channel).  You said you are looking for an already-built
solution; are you willing to put one together if none exists?  Also,
how much power/current are you trying to control, and how fast must it
be?  (Is a relay fast enough, or do you need electronic switching?)

Tom Bruhns
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