vintage

Hello, I picked a bunch of vintage electronics up at a flea market and came across this Simpson OHM meter I think it's called because it has the ohms sign on it. Any idea what these were used for? Can I use it to make an analog OHM Meter if so, how would I wire it? At what kind of battery or...

I work in a Machine shop and we have a very old CNC mill from 1983 with a Fanuc 3M control. It has a CRT display that has some messed up geometry and picture. I’ve worked with CRTs of this type and tried adjusting all the pots inside to see if the image would correct. It didn’t. Any ideas on...

Quarantine project: Adapting a Sony BFV-20W viewfinder Scroll down to skip the background info As a cinematographer, I've always really felt most comfortable shooting with a viewfinder. However modern electronic viewfinders all exist in the "prohibitively expensive" class of filmmaking...

Hello I'm sorting through some old electronics bits my grandfather passed on to me, and there are a few chips that I cant ID. Can anyone help me ID the chips in the attached pictures? Thank you in advance!

Hello, and thanks for reading this post, I have a Roland D-10 Synthesizer that plays all the keys after you power the unit up. But if you press E,F,Gb,G,Ab,A,Bb,B. on the second to lowest octave they play once at a maximum of 127 velocity and sustain at that velocity until the unit is...