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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Field Strength Meter (CB18302E)
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Negative Edge Differential Differential Amplifier LM3900 (CB4039E)
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Two Transistors XTAL Oscillator (CB12076E)
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