On Mon, 27 Feb 2006 08:10:12 -0800, Ron D'Eau Claire wrote: >A 35 Amp supply is *way* over-kill for a K2/100. A 20 amp supply provides >all the power you need at 100 watts with several amps to spare to run other >things. My K2/100 draws, typically 16 amps "wide open" on the bands >requiring the highest current.
Hello Elecrafters...... (and Ron - good to see you from the 600M list) I'm in the process of joining "the crowd" - ordered my K2/100 on line this weekend, at the urging of Robert Crocker, WN7O and with the support of Karl N7NLU, two local K2 owners and boosters. My two electrons' worth: My station power supply is a 12V Group 31 (truck-size) 100AH gel-cell battery with a commercial 10A "smart-charger" (which cost as much as the battery) backed up with a MFJ 45A switcher (currently out for repair, replaced with an Astron 15A linear supply). The computers run on a separate UPS system. When we moved here 6 years ago, my wife (who is a utilities engineer as was I originally) insisted that the 12V supply be installed to UL and USCG standards. That about doubled the cost but the digital meters and the LED circuit-status indicators look so neat in the darkened room !! At present the supply powers 4 VHF/UHF transceivers, 6 receivers, and 4 TNCs, all running 24/7, all on individual circuit breakers. The standby current draw is about 5A (if I am to believe the ammeters). There are separate breaker panels for the load bus, receivers, and transmitters, and I can run the load from the battery and/or the AC supplies depending on which bus breakers are set "hot". I usually set the P/S to be 0.3V lower than the "smart charger" (13.8 V float for the gel-cells) so I can leave both breakers "hot" and if one supply fails the other takes over. That's an old "redundant rectifier" trick that I learned from designing and testing communication site power units. Well, here I am...waiting for the kit to be delivered. I'll be around. I'm looking forward to getting on HF again after 40 years!!! -- 73 de K2ASP - Phil Kane From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon Retired and loving every minute of it.... Work was getting in the way of my hobbies _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
