Bicycle speedometer (CB7382E)

This circuit appears in other versions on this site. obtained from other publications. This is from American documentation from the 90s.

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Tremulo circuit (CB10115E)
This circuit was found in a National Semiconductor manual from the 1970s, appearing in articles and on...
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Found in 1965s General Electric documentation, this circuit is intended for the control of servos...
Display drive 4033 (CB7554E)
We found in this American documentation this circuit for activating common cathode displays. In it we...