I have tried to capture the history and the chronology of the vintage 6550/KT88 tubes to the best of my knowledge. Please add your inputs in the comments section if you have any additional context or information. Thanks!

00:00 - Introduction
00:50 - Labels vs Manufacturers
04:08 - 6550 History
05:24 - Tungsol 6550
08:20 - GEC KT88
10:34 - GE 6550A
12:21 - Sylvania 6550
12:53 - Summary

свернуть