"Larry Gagnon" wrote in message
news
I posted a few days ago about repairing a VHF marine radio. Thankfully I
solved my problem, locating three cold solder joints in the VCO, which
entailed removing metal shields and all the beeswax that coated all the
components. That was character building work!

I gather the beeswax is to ensure rigid components to maintain stability
of the oscillator? Any other reasons for it? Is it necessary for me to
remelt the old wax and spread it around as before, or can I get away with
just reshielding the VCO?

Any suggestions appreciated.

Larry VE7EA


Larry -

Beeswax and encapsulation seemed to be the fad for the Japanese mfg. in the
early 1980s. I have heard various reasons, but mobile operation (with
potential bouncing and jarring) is often mentioned.
Kenwood amateur gear had some noted PLL problems with their encapsulation
materials of that period -- although they were not the only mfg. using this
method.

I am curious to know the age of the transceiver and mfg.

Greg
w9gb