In article ,
Smokey wrote:
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





People that make their own telescope mirrors use all the grades of
abrasives.

Google is your friend.


--
a d y k e s @ p a n i x . c o m
Don't blame me. I voted for Gore. A Proud signature since 2001