While using a switch is pretty much out, has anyone given thought to adding an IC Socket and mounting the Rocks on a DIP Plug (or header)? Then it should be quick and easy to change frequency. And it they were plugged in backwards, it would not matter. Or go to a 16 pin DIP, with one side for the 7.031 Xtals and the other side for 7122, just reverse the plug to change freq. Just a thought.
73 de Keith ~ KC9IH ~ in Northern IL
~ ex-WD9GKA ~ ex-WB9HCL ~ ex-K9UCF
10-X 38221, SKCC 9396, NAQCC 6165,
QRP ARCI 5435, Flying Pigs 2926,
GORC 414, MI QRP 1163, 4SQRP