Hey everyone out there. New member here. I have a Cobra138XLR that I bought new in the late 70s. I heavily modified it shortly after purchase. 120+ channels, Add/subtract switch, open clarifier, peaked power spread through the channels.
I did the mods guided by a good friend who past away several years ago. The radio was used quite a bit up till about 1995 when it suddenly stopped working. The display lights up but no power out and no receive. I have just pulled it out of the closet and would like to repair it.
It lights up and the relay kicks in when the mic is keyed. It has no power on am and I believe the same condition on sideband but I did not test that today to be sure. There is no receive either.
I am very good at soldering and very mechanical. I need some guidance to a starting point for testing. I have a meter and a dumby load. My freq counter was loaned out many years ago and never returned.
Any help would be great. The radio is worth fixing. All of the modification switches are imbedded to standard front panel locations with the stock knobs. The unit looks completely stock until you try to turn the dimmer or tone control and find a single pole six position rotary switch. The cb/pa switch has been utilized also.
Thanks in advance
I did the mods guided by a good friend who past away several years ago. The radio was used quite a bit up till about 1995 when it suddenly stopped working. The display lights up but no power out and no receive. I have just pulled it out of the closet and would like to repair it.
It lights up and the relay kicks in when the mic is keyed. It has no power on am and I believe the same condition on sideband but I did not test that today to be sure. There is no receive either.
I am very good at soldering and very mechanical. I need some guidance to a starting point for testing. I have a meter and a dumby load. My freq counter was loaned out many years ago and never returned.
Any help would be great. The radio is worth fixing. All of the modification switches are imbedded to standard front panel locations with the stock knobs. The unit looks completely stock until you try to turn the dimmer or tone control and find a single pole six position rotary switch. The cb/pa switch has been utilized also.
Thanks in advance
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