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How to pick a stylus to play a 78-rpm record (www.vjm.biz)

submitted 10 months ago* (last edited 10 months ago) by [email protected] to c/[email protected]

20 comments fedilink hide all child comments

Insights into the kind of crap 78-rpm records were made of, and other scarce technical infos.

If you're not sure what 'a record' is, or haven't ever seen one, you're excused.

Oh, and by-the-way, 78 is the approximate number you get when you rotate a 46-tooth gear with a 3600 rpm motor. (60 cycles per second.)

Further wisdom such as this is found by the ton here: http://www.78rpmrecord.com/links.htm

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[–] [email protected] 3 points 10 months ago (2 children)

I always thought it would be neat to use a laser or high resolution scanner to image a record have a computer analyze it and convert the images to audio. Not sure if this has been done, but if not it would be cool to figure out.

[–] [email protected] 3 points 10 months ago (1 children)

It has been done! https://ofersp.github.io/digital_needle/

[–] [email protected] 1 points 10 months ago

Nice!

[–] [email protected] 2 points 10 months ago* (last edited 10 months ago)

There is indeed a way to use lasers to read 78s without touching the surface, and the gear is availble. Though probably not at a price most of us would like. Here's one example: https://www.elpj.com/ But after decades of work, they seem to have problems ... /Laser_turntable#Performance