LM3900 Positive Differentiator (CB5054E)

The circuit shown in the figure has an output voltage rise time of 0.22 ms and an input time constant of approximately 1 ms.

Erase oscillator (CB7338E)
Suggested by Mullard in a1969 documentation, this circuit generates the erasure signal for tape...
Damped Oscillator (CB403)
A pulse applied to the input of this circuits results in a damped signal in the output. Frequency...
Call warning (CB9294E)
This circuit can activate a powerful lamp or call system when a telephone call occurs. Suitable for...