DTL NOR gate (CB6922E)

This circuit was found in a 1969 Ferranti documentation. It can be implemented with modern equivalent transistors and diodes.

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Laser Gun (CB4647E)
The purpose of this Hartley oscillator is to produce the shot effect on a toy or other...
Model speed control (CB5375E)
This circuit is from an 80's documentation. The BC108 can be replaced by the BC548 and the 2N3055...
Improved Monostable Using the 4013 Flip-Flop (CIR130)
An inproved version of the circuit CIR129E is shown here. The resistorR1 must be at least 5 times...