Was using my 2517 yesterday, and lost all SSB transmit, and it's only doing 14W on AM. Any idea what could have happened, and if it's even worth fixing?
It receives well in SSB and AM. No transmit on SSB. It does about 30-35W PEP when it was working. I will get it repaired if I can find a tech to do it, and get the two non functioning switches (SWR and R.B.) repaired at the same time. It is a dual final radio, not MOSFET.Hello AK,
I've not worked on a 2517 before but I did look it up. I am assuming that it is a dual final radio as it is listed as 10 watts AM and 25 watts SSB. That being said, if the radio is doing 14 watts AM it sounds like the tansmit portion is working although maybe not like it was. The SSB side of things is repairable and could be worth fixing if the radio is in good shape otherwise. Because you stated that it's 14 watts on AM I am assuimg that it has been turned up which can be hard on radios. Does it receive on SSB and just not transmit or is SSB not working all together?
I'm not sure, will test it later today, and report back.Does the power knob on the front panel change the power of the AM carrier when you turn it? Could fill in one blank in this picture.
73
Sounds like a clear case of cause and effect. The only way to pin down how much damage was done involves unsoldering component leads and checking parts with a tester of one kind or another.The first time I keyed it up with the amp, it died.
Yes, I know. My stupidity caused this, that's the bottom line.Sounds like a clear case of cause and effect. The only way to pin down how much damage was done involves unsoldering component leads and checking parts with a tester of one kind or another.
Never assume that only one thing has failed.
73
35 watts Is about the max those 2517s will do without a lot of work. The sweet spot for clean modulation I have found is 3 watts swinging 25 with an npc-rc (100ohm+914diode) and ssb alc set to 20 watts., Watt numbers from my Mfj-870Sounds like a bad final amp. I think 35 watts PEP out is too high for the final. Perhaps a heavy duty replacement is available/