[NJARC] A slightly off-topic request

[Dave Sica]

Dick,

That's a great idea I hadn't thought about, and I may very well end up
going that route.  

Of course the tinkerer and recycler in me would greatly prefer to make
the salvaged DVD player-based system work even if it's more difficult!

Thanks,
--Dave



On Wed, 04 Apr 2007 10:26:31 -0400 Richard Knapp <ecinc at optonline.net>
writes:
> Visit our web site - See http://www.njarc.org
> _______________________________________________
> Dave
> 
> I may not fully understand the whole picture however try Home Depot 
> as they
> for one sell the remote wireless switches for ceiling fans and 
> lights.  So
> it can switch any voltage like you're 24 VAC thermostat line.
> 
> Dick Knapp, K2AIA
> 
> 
> 
> -----Original Message-----
> From: njarc-bounces at mailman.qth.net 
> [mailto:njarc-bounces at mailman.qth.net]
> On Behalf Of Dave Sica
> Sent: Tuesday, April 03, 2007 11:58 PM
> To: njarc at mailman.qth.net
> Subject: [NJARC] A slightly off-topic request
> 
> Visit our web site - See http://www.njarc.org
> _______________________________________________
> I am putting together a remote control circuit for use at our church 
> to
> switch the air conditioner thermostat on and off. I salvaged 
> circuitry
> from a defunct DVD player which will provide me with +5 and -5 volts 
> DC
> pulses as required. Now I need to make this control a relay that 
> will
> latch on with the +5 volt pulse, then latch off when hit with the -5 
> volt
> pulse. 
> 
> Then it hit me: I could probably design a circuit to do that using 
> vacuum
> tubes, but that doesn't really seem like the right solution here 
> ;-)
> 
> So I figured I'd toss this out to the *real* engineers out there. 
> My
> grasp of solid state is kinda weak, so although I could probably 
> muddle
> through this in time, I figure something like this must be the 
> proverbial
> piece of cake for a lot of our members. The circuit won't need to 
> switch
> any appreciable voltage or power, but I do want to use a physical 
> relay
> rather than a solid state switch of any sort.
> 
> I'll appreciate any suggestions!  I'd also like to scrounge up the
> necessary parts if anyone's got the appropriate stuff lying around. 
> 
> 
> Thanks,
> --Dave Sica
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