This differential amplifier, found in a 1964 Electronic Design, has a gain of 30. The setting can be applied to modern equivalent transistors.
This rectangular signal generator was found in an Electronics World of 1966. The transistors are...
Found in a Popular Electronics from the 90s, this circuit uses common components with several...
I got this4 circuit from Hands-On Electronics, 1988. The American magazine no longer exists, but...