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Considering a kenwood final on a washington, again.

brandon7861

Loose Wire
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Nov 28, 2018
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My daily driver is a uniden washington. I have an extra TS-130s final unit and I have been wanting to attach it to the washington for years now but abandoned it due to a lack of knowledge. I think I have the connections figured out now.
1787264607065.png

It would seem the first pair or wires on the bottom is for SWR foldback as it goes to a transistor very near to the directional coupler on the filter unit. I havent analyzed the circuit there, but I would assume bypassing the emitter would increase gain, so I am thinking swapping diodes D4 and D5 with caps and leave these two leads disconnected (or use it as a variable power mod). The thermal protection stuff that drives relays can go too because I don't normally sit on the mic very long. That should leave just the bias control thats TX only and the other three that I figure can connect right to 13v. Of course, the relays and a filter will have to be macgyvered onto a custom board and tucked inside the radio somehow (and shielded, maybe an external box, idk), a PS upgrade and maybe even some hot switching prevention.

I'm not an amp builder so I must ask if this would be ok to run on AM too or if I would need change bias for AM (the TS-130s had no AM). Anyone know if this will play nice with AM?
 


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