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Date: Wed, 04 Dec 2002 19:43:32 +0000
From: "Dexter McIntyre W4DEX" <dmcintyre@att.net>
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To: rsgb_lf_group@blacksheep.org,  j.r.moritz@herts.ac.uk
References: <5.1.0.14.0.20021202175331.027c0670@gemini.herts.ac.uk>
Subject: Re: LF: W-G SPM-19 trouble (survives exploratory surgery)
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The SPM-19 lives!  Thanks to Jim Moritz, I was able to locate the
problem in the 40.01 MHz 2nd LO PLL circuit.  A 2N918 transistor on the
PLL board was open.  Replaced it with a NTE161 and now the VCO is
locked. A wandering VCO was causing the off frequency problem. 

Now to find holes for all those screws!  What a beautifully engineered
piece of equipment.

W4DEX