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.
This circuit allows to obtain an output pulse independent, in duration, of the action time on...
With the coded activation of the relays, it is possible to control which of the 16 outputs...
This circuit was found in General Electric documentation from 1965. The transistors are from that...