wrote in message
...
I am looking for crystals for a TR-4 C ..Mainly 21.5 for 40M and 42.5
for 10 M ..Be willing to buy them, or trade for other crystals that I
might have.. TNX W4PQW

If you can't find them, International Crystal in Oklahoma can probably
make them. They have the specs for most ham crystals.

Pete k1zjh