Valve/Tube HF Linear Amplifier Build - Part 1 : HT Supply

This is Part 1 of the build process of a kilo-watt valve/tube HF Linear Amplifier. IMPORTANT: Without proper safety procedures and protection, the High Voltages involved will cause Death or Serious Injury. HT transformers are hard to find and expensive, so a modified microwave oven transformer will do. (No, this not about spot-welding .....) Cost is always an issue, so do not expect to see a 4CX1000A ! The aim is to use a GU-81M tube which is much cheaper and looks way sexier. As a guide, EX8A has a cool design (in Russian): http://www.cqham.ru/HiFi_Contester_EX... For all things tube-based, check out the superb resources published by PA0FRI: https://pa0fri.home.xs4all.nl/Lineair... For professional transformers custom-made to your specifications, contact EA7YB.