I had an almost identical experience restoring my 4342A and certainly echo the comments about not using WD-40 for long term lubrication. I used clock oil for mine. The only other comment I have is about the annunciator lights. The little incandescent lamps in my unit were mostly burnt out or had corroded leads that fell off on being touched. While I was in there I replaced them all with warm white LEDs and there was plenty of room to fit the associated resistors.?
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Morris VK3DOC
