10-Step Sine Generator (CB24472E)

This CMOS generator with the 4018 IC was found in a November 1976 Radio Electronics magazine. It uses a 741 op-amp as the audio amplifier.

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Bistable (CB21100E)
This bistable with transconductance operational amplifier was found in early National...
Under and Overvoltage Indicator (CB17225E)
This is a traditional comparator configuration to obtain an under and over voltage indicator. In...
24 Hour Digital Clock (CB18014E)
This traditional clock circuit with common CMOS components with discrete logic functions was found...