Thanks, Don & Tom, for your help. Now I'll scout around the web for the Astron schematic and try to find that pot.
I'm still debating whether to build a K1 to bring along to places with me or to build a fully kitted K2 QRP cover (ant. tuner and battery). The K2 cover is cheaper, the K1 building is more fun. 73, Mike ab3ap Don Wilhelm wrote: > Mike, > > The 'float voltage' that must be applied to an SLA battery terminals should > be 13.8 volts to maintain a full charge on the battery. The K2 has a series > diode in the power supply line for reverse polarity protection - that diode > drops about .2 volts. > > What that means is: to obtain 13.8 volts at the battery terminals, one must > connect a supply of 14.0 volts to the K2 to maintain full charge on the > battery. > > There is an intenal pot in the Astron to adjust the output voltage, so it > may be a simple matter to increase the Astron voltage - locating the correct > pot may be more of a challenge, be certain you adjust the proper pot. > > 73, > Don W3FPR _______________________________________________ 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
