How to safely test the Output Transformer on tube radio or amp.

The Output Transformer on a tube radio or amp is a crucial part of the design of the circuit, so a restoration's viability may depend on whether it is functioning or not. Finding exact replacements is not easy for equipment that is usually decades old. The idea here is to create a series of 'Tube Radio / Amp Restoration Building Blocks' which will be added to in time. The Playlist link:    • How to safely check the Power Transformer ...   See also my playlists on some other complete restorations. Graetz Super 171W:    • Graetz Super 171W tube radio restoration -...   Loewe-Opta Magnet 3737W:    • Loewe-Opta Magnet 3737W tube radio restora...   Loewe-Opta Truxa Stereo 4741W:    • Loewe-Opta Truxa Stereo 4741W   Braun Atelier 3:    • Braun Atelier 3   Graetz Musica 4R417:    • Graetz Musica 4R417 restoration   SABA Freiburg W2:    • Saba Freiburg W2 (WII) restoration   Graetz Comedia 616:    • Graetz Comedia 616 tube radio restoration ...   You may also be interested in ... Capacitor Leakage Tester:    • Capacitor leakage tester design & build DI...   Re-stuffing filter capacitors in this tube radio:    • Re-stuffing filter capacitors in Saba Frei...   Replace Selenium rectifier with silicon diodes:    • Replace Selenium rectifier with silicon di...