Gain 10 Voltage Amplifier (T456E)

This 4-stage circuit has a voltage gain of 10 and negative feedback. The circuit was found in an old MIT publication.

Monostable 4013 (CB4604E)
This circuit uses one of two D-type flip-flops available on an integrated circuit 4013. The...
Tone Triggered Relay (CB5942E)
This circuit is from an 80's documentation. The transistor can be any general purpose PNP and 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...