User:Valentinl

I'm an electronics engineer. I design and manufacture audio amplifiers using transistors and vacuum tubes. I spent twelve years repairing Soviet-made audio equipment in my professional career. My total experience in electronics spans over 50 years. I've repaired virtually every amplifier, tape recorder, and vinyl player. I'm particularly skilled in upgrading highly complex reel-to-reel tape recorders. I also design and manufacture acoustic systems.