Picked this thing up for 500 burgerbux from some guy. Made no noise at first. Been working on it off and on for the past couple months.

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File: 1574059348968-0.jpg (736.13 KB, 4032x3024, 4:3, IMG_20191112_130309.jpg)

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Fixing 50 Year Old Electronic Shit: Organ Edition Anonymous 11/18/19 (Mon) 06:42:29 No.220

Picked this thing up for 500 burgerbux from some guy. Made no noise at first. Been working on it off and on for the past couple months.

Anonymous 11/18/19 (Mon) 06:44:36 No.221

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First thing I did was a general cleanup. The key contact bars were pretty corroded so I hit them with some rubbing alcohol and emery cloth.

Anonymous 11/18/19 (Mon) 06:46:35 No.222

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The old power supply was janky as fuck, so I made a new one.

Anonymous 11/18/19 (Mon) 06:50:41 No.223

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This board here, the output board, had this giant leaky capacitor on it, which I replaced. There was also a janky voltage divider circuit for generating a 6V "signal ground," so I ripped that out and replaced it with a more modern regulator chip. Once I did all that, and fixed a missing ground, it suddenly started working again.

Anonymous 11/18/19 (Mon) 20:25:06 No.227

nice, hobbies r gud