Ramp Generator (CB10040E)

This circuit was found in an integrated circuit manual from the 1980s. The circuit can be designed based on modern operational amplifiers.

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Word Filter (CB13612E)
This filter, from an audio publication from 1977, passes the frequency range corresponding to the...
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In the figure we have three voltage doubler configurations that can be used in high and low...
Ring Counter using Lamps (CB6599E)
This circuit was found in Motorola documentation from 1966. The lamps are according to power and...