[Elecraft] XV222 Local Oscillator

[Ron D'Eau Claire]

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 support at elecraft.com.
He may have dealt with that issue already for someone else! 

Ron AC7AC