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Home Forums Macintosh 128k 240v Analog Board Component Identification — #9 Macintosh 128k 240v Analog Board Component Identification — #9
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It's a fast SCR ( Silicon controlled rectifier ) E0122 (or E0102YA). It's part of the power supply circuit.
Sorry I made a mistake here. I was looking at the schematics of an original 110 volts analog board instead of the International one so my orignal reply was faulty. Oops... :I

Indeed James has identified the component correctly.

mp.ls