個人的な日記と PC系の記事を書いています。最近は主に https://akiba.ninja-web.net/naka/ で記事を投稿しています。
It sounds like you’re looking for a — meaning a reference work that lists transistor cross-references (e.g., "NTE, ECG, SK, or JEDEC type replacements"), as well as electrical equivalents for small-signal, switching, RF, and power transistors.