Will it float or just another floater?
How to piss of Australians by simply thanking them (leaving that group).. the abuse I get online..
I must say that Hackaday is the friendliest crowd
(apart from some curators refusing to add some of the projects to specific collections)
Playing stampers https://www.facebook.com/phonopress/videos/748715011886306 <- must watch
Optical reading of stampers could be fun, reflective surface like a CD..Happy International Music Day!
Why not build LEDs directly into the cartridge? For DJ's or home use, I suspect that the most popular light right now is by Ikea.
The only other cartridge with LED that I could find is from DS Audio https://www.whathifi.com/news/worlds-first-optical-phono-cartridge-to-go-sale-ps6250 but they are in the business of mechanical->optical->analog conversion
So yeah, go build it yourself, but if you do it commercially without me, you will be named and shamed :D Haha, might open a mod shop
LEDs were saved form my old Nokia 3100 that were used to light up the keyboard, only measuring around 1.8x0.65mm super tiny and lightweight
All it takes is Epoxy gluing a needle to laser focusing lens and some soldering..
Some soldering & showing off (no magnifying glass used)
Measuring range +/- 0.256V over 16 bit resolution @ 16x gain, with a 0.0078125mV per step.
One could measure phono cartridge to see if there any magnetic fields present that could affect the sound quality (to get the voltage, multiply the value on the screen with this number, 4k video) Arduino and ADS1115
Also think Hall effect sensors and compas IC's