: Specifically for identifying Japanese-manufactured transistors, this volume focuses on substitutions. It is available on Internet Archive . Online Resources & Cross-Reference Lists
Again, not a pure substitution guide, but this classic textbook provides the knowledge needed to understand why certain transistors can substitute for others. If you combine The Art of Electronics with a cross-reference book, you gain the ability to substitute transistors even when no direct equivalent is listed—by understanding the underlying electrical principles【8†L20】. all transistor equivalent book
: Shows the physical layout of the Emitter, Base, and Collector pins. Famous Transistor Equivalent Books and Databases not a pure substitution guide