Matt asked: The local oscillator on the XV222 will not generate a sufficient signal level. The voltage measured at TP1 is 0.45VDC.
When first tested, TP1 read 0VDC. Seeing posts about a balky oscillator being sensitive to L4A, I adjusted the slug while watching at TP1. Sure enough, as the slug was adjusted, TP1 rose from 0VDC to 4.5VDC and then started back toward 0VDC as I continued to turn the slug into L4A. I backed out the slug until TP1 read its maximum of 0.45VDC and then continued out until the voltage at TP1 returned to 0VDC. When oscillating, the frequency measures at 193.995, which is well within the accuracy of my frequency counter. I checked all components and voltages at Q1 & Q2, everything was correct. I'm sure there are some clues buried in the above observations, but I'm unable to sort them out. Does anyone have any clue as to how I get the voltage at TP1 up over 1.0VDC? --------------------------- Is the local oscillator transistor mounted up off the board with a Teflon spacer on one lead as shown in the assembly manual? Ron AC7AC _______________________________________________ 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
