Found in old documentation, this circuit can use modern equivalent components. The signal has good strength thanks to the use of a power transistor. The Q1 transistor is a unijunction of the time.
We find this vibrato configuration with transistors in a 1987 documentation. The components are still...
This circuit emits a warning sound when night falls. The circuit is from a Hands On Electronics from...
3KSMC21AH 3000W Transient Suppressor from Taiwan semiconductor Taiwan Semiconductor is making...