Transistor circuit approximations

Ladybird Book Making a Transistor Radio Series 724 1972 Hardcover Vintage 24p

GE Transistor Manual Including Signal Diodes 1962 General Electric Radio Vintage

MODERN TRANSISTOR CIRCUITS No. 4 by Clive Sinclair Bernard's Radio Manuals #168

Transistor Circuits by Rufus P. Turner - Vintage

Vintage Lowery Spinet Model LSO Organ Technical Schematic Diagrams Manual

Tube Amplifier Schematic Bible : Library of Vintage Tube Amps G-z, Paperback ...

1969 ARRL Radio Amateurs Handbook 46th Ed - Vacuum Tube & Transistor Theory DIY