Hello there Peter,
Yourself and John, G6LJU, have been the only offers of help.
Progress has been made on the TRA-931 !!!!!!
RLB on the transceiver board is not switching thus no drive to
the PA board.
I do have the switched 12 vdc but very little signal makes it
through the contacts.
Pressing the PTT and then jumpering across the contacts I get 15
watts on high power !!!!!!!!!!!
Do you have any idea of where an exact replacement relay may be
found.
The few places I have found so far say it is discontinued, no
surprise.
I am too excited to head off to sleep so I am going to continue
searching.
Thanks much,
Dave KC3AM
On 07/19/2020 06:52, x_racal wrote:
Dave,
It sounds as if you are making some progress. Did you read the
manual on how the 1.4 MHz signal is generated? If you are in AM Rx
it seems that the 1.4 MHz signal is muted (see Part 3 page 2-9),
so could be why you are not seeing that signal? Change to USB or
LSB and see if the 1.4MHz signal returns,. If not, then you have a
good place to start looking for faults.
73,
Peter
G4DJB
--
Hams should be seen as well as heard,
73, Dave KC3AM
