r/highvoltage

Device for demonstrating the properties of electron beams in school physics classes.

The gas discharge tube contains a hydrogen generator and electron gun.

The device is based on the principle of interaction between the electron beam of the gas-discharge tube and the homogeneous magnetic field created by the Helmholtz coils. A beam of electrons is created in the gas-discharge tube by means of the electron gun. Its brightness, magnitude, and shape are controlled by the "Anode" and "Focus" knobs. The position of the electron beam relative to the magnetic field lines can be changed by rotating the gas-discharge tube around its axis. The magnitude of the magnetic field can be adjusted by changing the supply voltage of the coils.

USSR production, JSC Electronic Instruments, Ryazan', 1989.

This HV buss wall is how I distribute power to different parts of the lab, I have the indoor lines ( seen coming off the bells on the wall and coming towards the camera) and my outdoor powerlines ( the black/ red URD cables going out the top into the conduit that goes up the pole). I built this out of plywood for the backing, 2x4s and Hendrix pin top insulators. It was more of a “ it’ll work until it doesn’t “ type of thing, it’s gotten to the point to where it crosses that line to “ it doesn’t “…. Some pics of the current wall, vs the new plans to replace it. Ive ordered the standoff insulators and they arrive the 7th of may. The base frame is made entirely of unistrut, and the buss bars will be ½ copper pipe instead of the 795 ACSR I have tied up now. It will have switches, and a HVDC rectifier stack for my capacitor I will be introducing to my videos. This wall needs to withstand 28.8kV. I think you guys will love the outcome.

I might have to strap it down so it doesn't fly away!!! lol 😎

https://youtu.be/EpxmnKqS_hs?si=eLXM87R72WFcEin6