The purpose of this circuit is to convert a short-lived pulse into a negative rectangular pulse. The circuit uses a unijunction that can be replaced by an equivalent such as 2N2646.
Two potentiometers mounted at right angles, so that they can be operated by a lever, form a very...
The integrated circuit and configuration are uncommon. However, the sound quality is good. The...
Found in General Electric's 1969 documentation, this circuit uses two Foto Darlingtons to control...