Tag Archives: Allegro

Allegro V155B

Posted on November 17, 2017 by

Another quick die photo from a chip taken off the Nortel Handset from 1993.  It’s an Allegro V155B  (Possibly QMV155B as it was likely made for Nortel and given a QMV designation). The package has markings on the top and … Continue reading →

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Allegro 1391 Hall Effect Sensor

Posted on February 24, 2017 by

(I was debating posting this as the depot quality is not at all good, despite trying multiple acid baths and boiling acetone baths I could not remove all the plastic mold.  But it is what it is and I figured … Continue reading →

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