Pulse Scrambler (CB20547E)

This circuit assumes that a pulse produced by S1 has a constant duration determined by R1 and C1.

Circuit of Tremolo (CB1490E)
We found this circuit in the National Semiconductor Audio Handbook of 1977. The circuit produces...
Pulse Modulator (CB6916E)
Found in American documentation from 1968 this circuit is based on discrete components in addition...
Operational AC DC Converter (CB15807E)
This circuit used in instrumentation is suggested by National Semiconductor, now Texas Instruments and...