The Soviet S1-112A Oscilloscope / Meter Repair, part 2

Why was the pilot lamp flickering? How is the power supply designed? And finally... is it gonna work? Support me on my Patreon page at https://www.patreon.com/KeritechElectronics Instagram - https://www.instagram.com/KeriSzafir Telegram channel - https://t.me/KeritechElectronics Hackaday - https://hackaday.io/keritech