[Elecraft] PLL Reference Oscillator problem

[John C. Henry]

Greetings fellow Elecrafters,

I am building K2 #3318
Page 57, step 4
The frequency counter is hopping rapidly from around 478 through around
482 instead of showing around 12090.
I checked the connection and the probe.  When the probe is connected to
TP1, it shows 11965 fairly stable even when adjusting the tuning.  I
checked this with an external frequency counter and got the same
results

I sent mail to Gary (not thinking to send to the reflector first) and =
got some helpful suggestions.
The xtal is not shorted (checked with a DMM).
Re-checked and re-soldered T5.
Checked the VCO voltage and got .01v for all bands at both ends and no
change with L30 adjustment.
The probe works at TP1 & 2, and I checked with another probe and counter
just to be sure.

I suspect I cooked the xtal while grounding it, but I am looking for a =
method to be sure.
I am unfortunately unfamilliar with the circut ( beyond it looking like =
an oscillator :) and don't know what I am looking for to troubleshoot =
it.  The schematic doesn't have any reference voltages listed (not a =
complaint, just an observation). =20
Any suggestions would be appreciated.  I'd really like to make sure I =
didn't wipe out anything else.

thanks,
john
AC7LC

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