3-IC AD converter (CB9028E)

Found in American documentation from the 70s, this circuit uses components of the time, uncommon today.

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Pulse generator shield 555 (CB8196E)
Found in American documentation, this circuit aims to produce pulses of certain durations from smaller...
Logic level converter (CB7250E)
Found in an Electronic Design of 1965, this circuit consists of NOR gates and can be used in...
5V x 500 mA Buck Converter (CB9952E)
Found in documentation from the 1970s, this reducing regulator uses integrated circuits and...