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.
The values of the components of this Mullard (Philips) circuit depend on the desired voltages. The...
Found in an English publication from 1977 this audio amplifier provides an output of a few...
This reducer was found in documentation from the 1980s, using transistors of the time. The higher...