Help to identify a vintage top-hat transistor (Algemeen)

door Maarten Bakker , Haarlem/Delft, 09-11-2025, 13:21 (4 uur en 6 minuten geleden) @ kris

It seems like a transistor from at earliest the 1960's or more likely 1970's. The case may have originated in the US (1960's) and then be used in Asia (1970's), though that's a bit specualtive and based on vague memories.