Revox A700 restoration with help from the ESP32 скачать в хорошем качестве

Revox A700 restoration with help from the ESP32

Restoration of a Revox A700 where I replace three failed TCA561 ICs with an ESP32 dev board. This is my first major YouTube video and only my second 'Arduino' project. When these problems arose I quickly became excited to start this project because it coincidentally utilises (a) my lifelong electronic hobbyist skills, (b) a recent interest in Arduino programming and (c) work experience I gained in the early 1980s at customer's sites tuning dynamometer control systems 'live' while being driven by their engines and turbines. However, the reel motor drive amplifiers need a complete redesign as they don't correctly match the ESP32's 0-3V output to 0-100% motor torque. As such, I won't be releasing any further details until I correct that deficiency, probably before the end of 2023. EDIT January 2025: Rather than follow this complex route, a better alternative to failed TCA561 ICs is now to fabricate discrete emulators using the design published by Mister Q on the Tapeheads forum. https://tinyurl.com/vbudxfc2