Steve Nosko wrote:

"H. Peter Friedrichs" wrote in message
link.net...


Hello, All:

Rumor has it that QST featured an article in a January/1930 or


January/1935


issue on the subject of homebrew transmitter crystals - how cut, lap, and
mount them. If anyone has QST on CDROM for those years, I'd sure


appreciate


if you could take a look.
Remove XXX's and ZZZ's if you wish to reply directly, and thanks.
Pete
AC7ZL




Pete,

I have my Dad's grinding stuff, but don't do it. One thing to keep in
mind, and I don't know the details, but remember that the crystal activity
is effected by the edges. Grinding the edges is one of the more esoteric
aspects.


The trick isn't the edges but keeping the two surfaces parallel and
flat. The procedure is to grind a little
and check the activity. If it is down try to grind the center or edges
and check again. If it gets better
then go back to to grinding and trying to keep it flat.

Anyway that is the method I used.

Bill K7NOM