This circuit was found in a 1967 documentation. It is intended for triggering a xenon LASER. Observe the high operating voltages of the circuit. The components used are uncommon today.
This circuit was found in a General Electric documentation from 1966. It uses discrete components...
The CMOS TLC555 [equivalent to the bipolar 555] can be used as a monostable in the configuration...
This small audio amplifier was found in an American publication in 1975, The integrated circuit used...