09-07-2014, 07:15 PM
the radio is working, it just has an AC hum in the audio.
when the 2nd detector tube is removed the hum is gone.
when the det-osc tube is removed, the hum is still there.
i tried switching the type 36 tubes and it made no difference.
when i touch the wire going to the control grid (top) of the 2nd detector tube, the hum gets quite a bit louder.
this leads me to believe that the problem is in the 2nd detector section.
if someone could either confirm or refute my suspicion, it would be very helpful.
logic tells me that the problem is in the rectifier/ power supply section, but i dont have the experience with these sets to be sure.
i really appreciate all the help so far.
without you guys i would be lost.
LC
when the 2nd detector tube is removed the hum is gone.
when the det-osc tube is removed, the hum is still there.
i tried switching the type 36 tubes and it made no difference.
when i touch the wire going to the control grid (top) of the 2nd detector tube, the hum gets quite a bit louder.
this leads me to believe that the problem is in the 2nd detector section.
if someone could either confirm or refute my suspicion, it would be very helpful.
logic tells me that the problem is in the rectifier/ power supply section, but i dont have the experience with these sets to be sure.
i really appreciate all the help so far.
without you guys i would be lost.
LC
