
Vintage Japanese Semiconductors — Archive, Measurement & Engineering History
A long-term technical archive dedicated to vintage Japanese transistors. Original datasheets, verified measurements, SPICE models, and the engineering history behind them.

260316_V4R2EN_2SC1815-SPICE All Four hFE Ranks —…

Who I Am — A Memoir Chapter 1: My Father My father̵…

SONY Audio Power Transistor 2SA835 / 2SC1663 Si PNP/NPN…

2SA494/2SC369 2SA494G/2SC369G Si PNP/NPN Package outlin…

2SA493 / 2SC1000 / G / GTM / TM — Toshiba 50V Low-Noise…

260314_V14R0EN_2SA968-2SC2238 TOSHIBA Audio Power Trans…
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