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Search results

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    Kenwood TS440S Too high voltage in VCO 5 (7.8v versus 5v)

    Working through a TS440S that I bought off ebay that had some of the glue problems in the VCOs and radio presented with DOTS problem. Previous owner had scraped out glue and touched up back of VCO 5 solder joints but residue ate through some components so I replaced/fixed where necessary...
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    Can I substitute a 1N4148 for a MA858 Diode in a Kenwood TS440S

    Repairing a kenwood ts440s with the famous glue corrosion issues. Few of the components had legs eaten off and I am just working through it (dots issue) Wondering If i can use a 1N4148 in place of MA858?. I can half solder off the remaining partial leg of the working MA858 if a 1N4148 does not...
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    TS430S With one blown final (options please)

    Hey Guys, I picked up a cheap TS430S for a bargain and have fixed the RX and am now working on the low transmit power. Looking at the RF final board I can see mismatched finals, one is a Toshiba 2sc2290 and the other is a Motorola Trio SRF1174 (926) pink dot. The SRF1174 is showing a base to...
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    Palamor TX75 Single Pill MRF455

    Bought this yesterday locally. Was pretty excited to get what I thought was a 2 pill amp (from my google searches) thinking 100w pep on ssb here we come! Opened the covers this morning to see its a single pill MRF455. Most of my online searchs show a more modern version I think from the early...
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    Is a 7 digit frequency counter accurate enough for alignment?

    Hey Guys, I've seen a cheap 7 digit frequency counter on ebay. I've done a few searches on the net and see mixed arguments, some say its enough others say at least 8 digits to align HF radios. Whats your opinion? This is what I'm interested in: 7 Digit counter that goes to 200mhz, no brand...
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    GME Electrophone TX560 Repair AM/SSB (PTBM146AOX), no AM RX, no TX

    Hey Guys, I'm working on what I believe is a cybernet board: PTBM146AOX with a LC7131 PLL. This radio started my interest in trying to repair radios a year ago. Bought off ebay as untested of course :) Unfortunately I didn't have the soldering skills at the time and made a lot of beginner...
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    Navaho TRC490 No Transmit (PC385AG)

    Hi Guys, I bought a Realistic Navaho TRC490 recently from ebay as working on RX, but not on TX. Board is PC385AG ie same as Uniden Washington (MB8719), Cobra 2000 etc. Description was possible mic wiring wrong......mic supplied was wired wrong but I had a working mic to suit the 4 pin...