I think that I have the manual and schematic on this if still needed.


wrote in message
om...
I have a National NC 300 receiver,it has a XCU 303 calibrator that was
made for NC 303...It works fine as a marker, but it has extra tube
(12AT7) and an antenna input connector ...I would like to see the 303
manual to see what it says about this calibrator..Any help on this?
thanks Harold W4PQW