The integrated circuit used in this circuit is from the time of publication. The circuit is from a Radio Electronics from October 1987. The triac must be equipped with a heat sink.
With this circuit it is possible to use a common hair dryer as a hand dryer. The circuit is timed...
This power supply was found in the same 1990 special issue of Radio Electronics Experimenter...
Suggested by an Electronic Engineering, this circuit uses components of the time. Modern...