Hi Ron, Yes, Q1 is mounted 3/8" high with the teflon spacer. I was thinking that the crystal is OK because it oscillates at the correct frequency.
How critical is the MPS 918? Could I substitute a 2N2222 in place of Q1 just to check out the operation of Q2 (BFR96)? Is that a sensible thing to do? _______________________________________________ You've run flat up against all I know about the L.O. I would suspect a flaky transistor or, possibly, a low-activity crystal. They can be on frequency and still not provide the drive needed. As you probably know, overtone oscillators are finicky things. I'm not the engineer on that project so I can't answer your question about substituting Q1. I'd suggest dropping Gary a line at [EMAIL PROTECTED] He may have dealt with that issue already for someone else! Ron AC7AC _______________________________________________ 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
