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Archive: https://archive.today/a5UTp

From the post:

>When [Marsupial] picked up a vintage Sansusi P-L45 turntable, he figured it would be an easy fix: a few capacitors, a belt or two, and maybe a new cartridge, the usual. But it turned out the electronics were fried, which set the stage for an upgrade that turned it into what may be the world’s only ESP32-driven, Home Assistant integrated, linear tracking turntable. That last bit, the linear tracking, is why the turntable originally had a microprocessor in the first place: rather than an arm that pivots along the groove naturally, fancy turntables towards the end of the golden era of vinyl slid the needle along a linear track at a variable speed to follow the spiral groove on the record. You can see that in action in the demo video below, though it’s of a working version owned by [BFinks].

Archive: https://archive.today/a5UTp From the post: >>When [Marsupial] picked up a vintage Sansusi P-L45 turntable, he figured it would be an easy fix: a few capacitors, a belt or two, and maybe a new cartridge, the usual. But it turned out the electronics were fried, which set the stage for an upgrade that turned it into what may be the world’s only ESP32-driven, Home Assistant integrated, linear tracking turntable. That last bit, the linear tracking, is why the turntable originally had a microprocessor in the first place: rather than an arm that pivots along the groove naturally, fancy turntables towards the end of the golden era of vinyl slid the needle along a linear track at a variable speed to follow the spiral groove on the record. You can see that in action in the demo video below, though it’s of a working version owned by [BFinks].
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[–] • 1 pt

A lot of later turntables used PLL synthesis to create clock and lock to drive the table, and some of them did fancy things like pivoting the arm to keep the needle in the groove at the optimum angle. (PLL Synthesis is a locked loop where the system provides an output that is self-corrected and can be very stable when done properly.)

Those chips that drive stuff like this is unobtanium with a few rare examples being produced in limited quantities and costing rare money. The home assistant integration? I have no idea as a turntable is not a device that you can set and forget, it requires messing with in order to do it's function.

[–] • 1 pt

May Lab-60 a child could work on. I know I worked on it as a child.