Hello 4William 1136264:
I got my Tram D201A to work, now transmitting and receiving. I found C242 a capacitor for a tuned circuit acting nutzoid causing very low output power coming out of the Balanced Modulator Board, causing the driver and finial tube to have low out put power.
I also bought a new Balanced Modulator Board for 95 dollars from Barkett Electronics at:
Barkett Electronics Home Page
They treated me very well and sent the rebuilt Balance Modulator Board very quickly. The new board even worked better than my original repaired BM Board, giving the radio a few more watts out on SSB.
I talked with the Tech there who I though was real sharp, he told me it is very expensive to go thru the old Tram D201A Radios, but many still have it done. He finds many bad resistors and replaces all the electrolytic capacitors and aligns the radios. I have replaced many resistors in the transmitter and have it running really good. But the receiver has a low output and I suspect the possibility a weak tube of plate load resistor, and there's no telling what suprizes one will find there.
That Penetrator 500 5/8 Antenna is a great one. This antenna was rated to handle 1500 Watts from
Hy-Gain Back in the later 1960's to early 1980's.
Good luck on your re-tubing effort.
Jay in the Mojave
Quote:
Originally Posted by 4william
I bought my Tram in 1973 new. Great radio!!! I had it hooked up to a Super Penitrator 500 ground plane which I also still have. I Plan to get it 10-8 but it needs to be retubed.
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