Thom, A PSU rated for 25 amps should be adequate in terms of current for a 100 watt transmitter. Something else that must be considered, especially if SSB is used, is that the PSU's output voltage should remain constant at all transmitter power levels. Also the DC supply voltage measured at the rig's DC input connector should remain reasonably constant under the same conditions of current draw. With a well regulated PSU supplying +13.8 VDC and low resistance connecting leads and connectors, the voltage droop as seen at the rig end can be held to 0.5 volts or less.
73, Geoff GM4ESD ----- Original Message ----- From: "Thom LaCosta" <k3...@zerobeat.net> To: <elecraft@mailman.qth.net> Sent: Tuesday, September 29, 2009 10:21 AM Subject: [Elecraft] Astron 25 amp supply > Can I use an Astron 25 amp supply a K3-100? > > Thanks > > Thom ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
