In a moment of carelessness, I inadvertently transmitted into the RX input of
my recently acquired TR-7 while testing the transmitter output last week.
OK - I can hear the laughter now, and it is well deserved!
So far I have determined:
The rig had zero (or near zero) RF output when purchased - I will move this
problem to the bottom of the list.
The diodes in the CM-1 mixer module on the upconverter board are shorted -
hopefully this the limit of the damage caused by my negligence.
I cut open the CM-1 module with a Dremel, and the diode ring is a discrete
part, encapuslated in what appears to be a ferrite bead, so the module will
have to be replaced.
I have ordered a MiniCircuits SRA-1 mixer from RF Parts, which I hope will be a
direct replacement for the CM-1.
I will post the results of my efforts to repair this rig to the list.
Any comments, questions and or razzing is now being accepted ....
Thanks,
Charles
K5QED
_______________________________________________
Drakelist mailing list
[email protected]
http://mailman.zerobeat.net/mailman/listinfo/drakelist
