I just aquired a
TX4C that is having some quirky problems. When I put the transmitter
into
the Tune mode after
it's tuned, the power will jump to 100 watts and then drop down to 60 watts
after approx. 10
seconds. If I then tweak the gain control to a higher postion (ie move CW) the
power
will return to 100
watts and stay there. I've taken the rig to a friends house who's very sharp on
these
tube types. After
poking around he discoved that the problem may be in the sidetone generator
circuit.
He was able to see
that the tune signal drops off as it enters the tube (can't remember the tube
number)
and
I was also
told the my mic. audio was getting distorted as I was using it. (I imagine if I
had increased gain
in may have come
back) Also, when I tried to use the rig in CW mode the rig would go into
transmit mode and
then drop out quick,
just a beep and back to receive, irregardless of VOX
setting.
Has anyone had this
type of problem or any ideas?
Larry
W0FLY
