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Cake day: June 14th, 2023

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  • On a high level, you can get a cleaner like Deoxit D5 in a spray bottle. Most pots have a slit in them so you can spray into them, then turn the pot through its range a bunch of times. It’s worth a try as a start. Obviously do it while the unit is unplugged.

    If you want to consider a more aggressive rebuild, like a capacitor replacement, maybe find a cheap old amplifier at the thrift shop to use as practice for desoldering/resoldering.

    You might be able to connect the BT to one input on the amp, like the tape input, and the CD to another.
















  • Cobalt 60 has a half life of 5.27 years.

    If the 7-1-63 is a date stamp of original manufacture, it’s gone through over 11 half-lives. There’s less than .05% of the original flavour.

    I don’t know about the decay products, but I’d wonder how far we are from legitimately edible.


  • If you’re thinking amplifier, just grab your favourite Japanese '70s hi-fi range and go from there. Can hardly go wrong.

    A half-scale Harman/Kardon 330c but with an OLED info display in the panel that held a tuning scale might kill it.

    The key is to use the right materials. They sold a modern CD-based stereo a few years ago that apes the look of a small Marantz 22xx, but being plastic garbage, sort of fails the mission. Conversely, Yamaha did some new silver-face amps that don’t look like dollar-store tat.