This circuit appeared in Radio Elecronics magazine in 1968. The operating circuit is a general-purpose type at the time and the power supply must be symmetrical.
Found in an American documentation from the 90s, this circuit works as a receiver for a data...
This experimental amplifier was found in the 1960 Mullard transistor reference manual. The...
This circuit makes use of an uncommon TTL component today, but it can be implemented with...