All,
Hi Joe here. Thanks in advance and your help in my quest to get an FT101E back to health.
A friend of mine, an elderly ham, was transmitting without an antenna connected to the radio. Yes, that’s right, without an antenna. This cause the RX and TX to fail. This happened several years ago and over this time I’ve been able to get the receiver working as it should but the TX is still not working. Using the radios internal calibrator I get anywhere from S9 to 10 over S9 depending on the band.?
I did put a good set of tubes in the radio but there is no output on 10,15,20, and 40 meters, and about 5 watts on 80 meters. I haven’t checked 160 at this point. I’ve replaced C13, C125, C131. The driver and final tube voltages are fine. Relays are fine, and I did swap relays from my working 101EE to no avail, as well as trying couple sets of known good tubes just in case.
A couple of things to note.
The -100 volts at PC1076B reads -170 volts, but this is what my working 101EE reads so not sure if this bad.
There is no voltage on Pin 5 of the mixer board, which should by 13v.?
On 80M I hear crackling on receive, like a bad tube or a bad cap, and the plate knob acts like the the preselect that “peaks the receiver” but not as significant as the Preselector knob,
I do have proper idle current of 60ma.
On 80M, the Preselector, plate, and load controls do peak the output power, ?but again only 5 watts.
Another test I did is I pulled out the final tubes and transmitted with only the driver tube and clearly heard both a CW and SSB voice signal on another receiver.
I am using a 50 ohm dummy load for the test.?
Any help is greatly appreciated.
Joe
KC5DFP
