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Kenwood TS-450S
- Got on 2023-12-31
- “Has issues”
- Serial 40800518 - lots of late '91 date codes on parts
- Has ATU, don't know if it's original, tuner jumper in place and clipped, not sure if that is done in factories.
- Overall good cond., some rust on the lid, boards are clean
Repair History
C104
Like all other TS-450Ss, C104 on this unit had begun leaking and there was considerably corrosion on the board underneath it. Audio was very low, and leaky, both telltale signs. Was able to remove it without damage, and clean all of the goo from the board. Some solder mask around it had been eaten through, but the copper seems to still be in good shape. Installed a new (questionable quality) 16v 470uF part from stock at the makerspace. Due to the age of this rig I think a full recap would be a good idea.
Here's a good option for a replacement kit: https://klondikemikescapkits.com/products/kenwood-ts-450s-690s-electrolytic-capacitor-kit
D11
Surge protection device (gas discharge tube arrestor) D11 took a major hit at one point in the past. Failed open. Glass is smoky and cracked, the PCB is scorched underneath and the relay next to it is also very slightly melted. I've removed D11 but will be replacing it as well.