Found in a 1968 Motorola manual, this DC circuit uses components from the era. The circuit fires in microsecond times. The Q3 transistor must be according to the controlled load.
This circuit was obtained from HAM Radio magazine in an 80's issue. The FETs are types of the time...
This circuit shows how to control an astable configuration using the 555 IC. The control signal is...
This interesting circuit was found in a French publication from the 1980s. The circuit indicates when a...