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https://www.parts-express.com/kemo-m031n-35-watt-u...try this amp if you replicate this project. there is a stereo version too. The FM/Bluetooth boards I've been buying from Ali Express will run on 12 volts as well, so power it all with a battery or wall wart. Parts Express has 'em for $5
I don't re-stuff cans, every time I see one I want to rip it out immediately. it's a visual red flag for me.
I've found that most really old sets, those from before 1960, are designed for 110 volt AC not the more common today 120 volt, my house has 122 volts. Rebalancing the circuit for this increased voltage really helps boost reception and kill signal noise
Tube Radio Capacitor Can Re...View Instructable »
making sleeves yourself is a no -go, unless you can broach cut the keyway. the weld hubs are a much quicker solution, lathe the outside and install.
read the parts list-surpluscenter.com carries the weld hubs, they need to be machined down a small amount to fit into the wheel, then welded into place.
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