This well-designed bistable configuration is for educational purposes. We found it in the September 19873 Radio Electronics magazine. The transistors are types from that time.
This oscillator works with voltages from 1 V of alternative energy sources, such as a battery of...
This timer for long time intervals is from the 1990 Motorola Linear Databook. The setting applies...
Also suitable for use as a noisy alarm, this Morse Code or telegraph practice oscillator was found...