Liquid Crystal Watch (CB19860E)

This watch uses a liquid crystal display. The circuit is from the 80s and the module used is uncommon nowadays. Power is provided by a single cell.

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Different Tone Control (CB19185E)
The difference in this circuit, found in documentation from the 90s, is the use of a single...
Remote Control Decimal Decoder (CB24833E)
To work with the above circuits, this decoder provides an output of 10. The circuit is from an...
Standard Differential Amplifier (CB14070E)
In the figure we have a precision differential amplifier found in the Linear Applications Handbook of...