Surge voltage generator (CB21465E)

Found in a 1967 US magazine this circuit generates positive and negative voltage pulses from a negative transition of the input signal.

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LED Moving Bar or Dot (CB9712E)
This is a typical point scale or moving bar circuit with the LM3915. We found it in old American...
DC Power Inverter for AC (CB19918E)
The MOSFETs are of the type of power and the resistors have their values between 1 k and 10 k for...
Switching Boost Regulator (CB24609E)
This switching boost regulator, which provides a 24 V output from a 12 V input, was found in the...