Vostok - 1.5 KW HF linear amplifier using GU-81M ( GU81 GU81M ГУ81 ГУ-81М ГУ81М) tube - by YO6PMX

10 years ago, Serghei Pasko, EX8A published on a series of articles describing the performances of the “old“, “hopeless“ “lazy“ tubes GU-8...