'Push button memory (CB7243E)

This circuit was found in an American documentation from 1969. The circuit memorizes when a command pulse activates the relay.

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LF357 500 kHz Operational Amplifier (CB3992E)
We found this circuit in the 1990 Motorola Linear Databook. The circuit must use symmetric source and has...
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The frequency of this oscillator, found in a technical document from the 1970s, is determined by...
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