Have any of you used the "JR Single Conversion 72Mhz FM Crystal Set by Performance Devices" They are sold on ebay. I would like any feedback on their Performance compared to original JR crystals. Is there any problem mixing a tx crystal from one of these sets with a JR original crystal in my rx (or visa versa)? I am using a JR 421XF and a JR SX600 transmitter. My receivers ar JR R600's.
Thanks for any info,
Richardci