This circuit was found in an 80's Electronic Design. It amplifies TTL fast signals for a coaxial cable. TTL is from the S (Schottky) line and transistors are types of the time.
The power supply for this 1972 circuit must be symmetrical and the BC549 transistors. Care with...
Found in documentation from the 1980s, this circuit makes use of general-purpose diodes and...
This circuit was obtained from a 1966 documentation. The transistors are of the time. The circuit...