Camp, Forrest, Camp! wrote:
SCVJeff wrote:
Why not get a cheap thermostat from Home Depot and a DPDT relay?
Tell me more.....
Just a cheep thermostat, Heat only works if that's all there is. That simply controls a 12V relay with Double Pole Double Throw contacts (SPDT works too). set the temp to whatever you want, 75 degrees... If it's a heat only stat, when the temp is met, the stat opens. Simply wire the relay to control the fan on and off.
I've built many of these into repeater cabinets and left on remote radio sites for years before they are ever seen again. It's just brute force switching that just works.
Stat: Home Depot, etc.
Relay: any surplus store. Www.allelectronics.com. Is a good place to start
