Quadrature detector (CB9410E)

We found this circuit in General Electric's documentation from 1968. The integrated circuit is from that time, uncommon today.

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Shaver adapter (CB9953E)
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1 kHz Bandpass Filter (CB24388E)
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Darlington Conventional Optocoupler (CB13063E)
Here we have in the figure the configuration of the circuit as a conventional Darlington. In this...