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Mini reviews

• • Exploring the history of 2SC1815, one of most standard transistor, through published documents

Electronics devices

• • About Discrete Semiconductors

    • Memorandum for general purpose silicon transistors

    • Equivalent transistors in different packages (General purpose, AF and RF small signal silicon transistors)

    • RF power transistors or HF to 50MHz (up to 20 W output)

    • Transistor line-up for 27 MHz transmitters

    • RF power transistors for mobile VHF bands FM

    • RF power transistors for potable VHF bands FM

    • Power transistor for mobile UHF (400MHz) band FM

    • Germanium transistor substitution

    • Complementary-pair germanium transistors

    • Personal comments to discrete semiconductor devices (in Japanese)

    • Personal comments to semiconductor devices for ham radio (in Japanese)

    • Selection guide for RF small-signal FET (Link to Marutsu's site in Japanese)

About literatures (in Japanese)