Everybody has forgotten the AC/DC switch on the replies to this question. It's so easy to overlook. The AC/DC-ness of the vertical amp is quite important. If you have a 1 Vpp RF on a 350V (oops, empty-state device).
If you have a 1.5 Vp-p RF voltage on a 12V line (blocking caps on one or both ends, I imagine), you can measure either. On DC, the trace would be from 11.25 to 12.75 volts (probably 2 to 3 reticule boxes on the 5 v/div setting), and you could see the center of the trace at 12 volts. Flip the switch to AC, and the trace will jump down to centered on zero. It's still only about a half unit tall. Switch the v/div up to 1 or .5, and the whole screen fills with the AC part of the trace, and you can see if it's 1.5 volts much more easily. There should be a "Beam Finder" function to locate if the trace is way above or way below the screen. Use this to get it somewhere visible, and then fine tune the other controls. Dan / WG4S / K2 #2456 <snip> I have done both in my life time and I'll take the O'scope problem any day... </snip> But can you back up a Mooney? _______________________________________________ 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
