Hi,

According to my boss in the late '60s and
early '70s,W.T.G. Glasspool (would you
guess he was British?), beeswax was widely
used in the past to secure coil windings,
seal slugs in the cores of forms and
transformers, etc.. Apparently it doesn't
reduce the "Q" too much, and was readily
available in those days.

73, John - K6QQ

I purchased some here in the UK from a local craft shop quite
recently. It is an excellent material for holding things together
as long as the temperature doesn't get too high and IMHO makes a
neater job than hot-melt for holding small items onto a PCB. The
trick is to keep an old iron bit especially for the job (and also
for starting holes in plastic boxes.) The stuff I got is in the
form of small beads and so very easily handled with a pin.

The wax in that VCO, BTW, is anti-microphonic in purpose and
definitely should be re-melted. This is particularly important if
the loudspeaker is in the same cabinet with the radio.


Cheers - Joe, G3LLV