20-11-2023, 06:08 PM
I used to have an oscilloscope made from an old WW2 vintage CRT display unit with VCR97 which had an RF EHT unit, it was inside a screening can with vent holes. The coil was wound on air cored perspex former similar looking to your posted photo. The output voltage in this case would have been around 2.5KV or thereabouts.







