That's a great idea, and one that I've considered in the past myself. Maybe I'm just lazy or a tightwad, but I've settled on NTC inrush limiters as discussed here before. They are cheaper than a decent relay, even easier to install, and do a nice job of saving the switch. Proper arc supression across the switch contacts wouldn't hurt either, but I haven't gotten around to that yet.
Of course, the ultimate in quick and easy is to use a switched power strip to turn the radios on and off. 73 -Jim On Sun, 25 Sep 2011 13:40:49 -0500, robert wrote: >Place a 115 VAC relay in the external power >supply, that is keyed by the ON-OFF >switch in the rig. This switch is going to be impossible to replace in the >future. It takes a beating considering the inductance of the power transformer >(just ask the spark coil in >your car), and the amount of power going >through it. There are soft start circuits >out there, but a relay is simple to hook up >(4 wires, 16 gauge or better), and cheap. >You may have one laying around already. -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! "Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime." HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
