Go back to the automotive parts store and pick up some 1500 grit carborundum
paper. I use it all the time on the FT-243. Use it with water, works great
and works well.

--

"Smokey" wrote in message
...
In the 1960s I ruined many a crystal following the guidelines found in ham
publications then for raising the frequency of my FT-243s. Of course I
used
Comet or Ajax since that was all that was available. Now, lo these many
years later I am ready to give it a go again only this time I'd like to
try
it with carborundum grinding powder. I have checked the local hardware
stores and the response is typical for the Jasons and Jareds who have no
business working in such a place. When they ask you to repeat
"carborundum"
its a sign they'll be of little help. I've tried automotive parts stores
and, while carborundum is used in cylinder compound it is mixed with some
other chemicals I am not sure would be good for my quartz. One idea was
the
guys that polish rocks and collect them. Hobby stores? So where do YOU
find
your carborundum? I'd like to know because I can't find it. Even the
people
at the glass etching place in town thought I was gargling when I said the
word "carborundum." Thanks for your suggestions.

de W9STB