Who said they were plated?
-Chuck Harris
J. Forster wrote:
No. There is just a little rectangular quartz wafer. No plating.
In fact, post WWII, when many ham transmitters were 'rock bound' (ie:
crystal conteolled) it was common pratice to regrind mil surplus rystals
to move them into the ham banda.
Apparently, some were also etched using a cleanser called Whink, which
contains a flourine compound.
Also, some advocated applying graphite from a pencil lead was used to
decrease the frequency.
If the crystal ativity was low, they were taken appart and cleaned.
-John
==============
I'm puzzling over this statement. The FT-243's I have seen have a spring
that squishes the quartz blank between the electrodes. They aren't plated
onto the quartz, but they are still in intimate mechanical and electrical
contact.
-Chuck Harris
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