Well, prompted by the interesting discourse here, I decided to ignore my bulk and get on the floor to make some measurements at the PS (RS35A).
K3 on Receive: 13.60 volts K3 at 120 watts output: 13.59 volts Hmmmm. Okay, so then did voltage (and amp) readings using the K3 itself. Watts are also read from the K3. Receive: 13.6 / 0.75 Xmit : watts output / voltage / amps (xmit is CW, key down) 0.0 / 13.4 / 1.75 1.0 / 13.4 / 2.14 2.0 / 13.4 / 2.49 3.0 / 13.3 / 2.66 4.0 / 13.3 / 2.84 5.0 / 13.3 / 2.96 10 / 13.1 / 3.61 12 / 13.1 / 3.88 13 / 13.3 / 7.48 (KPA kicks in) 20 / 13.3 / 8.64 30 / 13.2 / 10.21 40 / 13.2 / 11.38 50 / 13.1 / 12.45 60 / 13.1 / 13.20 70 / 13.1 / 14.07 80 / 13.1 / 14.83 90 / 13.1 / 15.64 100 / 13.0 / 16.40 110 / 13.0 / 16.97 120 / 12.9 flickering to 13.0 / 17.66 Well, the Astron appears to be VFB after about 3 decades of service. :-) So...do these numbers tell us anything? de Doug KR2Q _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
