Monostable 4047 (CB25123E)

This re-triggerable circuit was found in the April 1988 Radio Electronics magazine. Timings are given by R1 and C1.

Electrometer Amplifier (CB6193E)
This circuit was found in a NASA documentation from the 1980s. The components used are of the time...
BCD decoder (CB13579E)
This circuit decodes BCD signals applied to the input providing the corresponding digit on the...
Shooting in the Dark (CB3843E)
In this circuit of 1987 the player has to briefly press one of the keys trying to hit which LED...