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I'm trying to find the oscillator circuit in a ti 84 plus ce, and the oscillator is integrated inside an ASIC with ram and cpu, but there would be a circuit that leads out of it. I've tried voltage testing the test points and frequency testing, but there's many voltages that match and the...

Hello everyone, as the title mentioned i own a Casio Fx Cg-20 which i use in my classes and it's backlight is not working. The screen itself is working as i can see it working with enough ambient light. The brightness setting is obviously useless here. Batteries are fresh too. Does anyone have...

Hi guys, I just found a great website that lets you easily calculate the parameters of a transformer or inductor, given the core parameters and material. I was trying to choose some suitable core to make a flyback for geiger counter, and this really came handy instead of doing a bunch of...