Found in 1969 Ferranti documentation, this small font is characterized by its low ripple. Transistors can be common for general use, due to the low operating current.
The circuit presented was found in a European publication of the 1980s. Used transistors are not...
Found in an American 1980s documentation, this circuit compares signals from two TTL sources,...
This circuit was obtained in a 1964 Electronic Design. Equivalent modern transistors can be used....