[Drake] TR3 Issue

[Robert Wood]

Hello All,

 

I just got a TR3 from EBay, but it is not working.  After I plugged it in, the
150v reg. tube was sparking.  I replaced it with another one and solved the
sparking tube issue.  

 

Now, I do not receive any signal switching between all bands and modes (I have
an open 1/4 plug in the CW plug).  All of the voltages from my AC4 are good, and
I validated the regulated 150 voltage is good.  I tested also tested all of the
tubes on a tube tester and they all indicate good.  I can get the speaker to hum
by touching volt/ohm meter on audio pot, and the carrier detect pot, but that is
as far as I have gone.  Another interesting symptom is the S meter goes all the
way to the right after the radio warms up.  I appreciate any insight you can
provide me on this issue.

 

Thanks,

 

Robert

 

WB5MWL