Single pulse photo trigger (CB8328E)

We found this circuit in a 1970 General Electric manual. The circuit uses components that are uncommon today.

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5th Order Three Section Filter (CB12567S)
This circuit is suggested by Texas Instruments and with the component values we have a cutoff...
Delay Generator (CB5148E)
This circuit was found in an ancient American documentation. Used integrated circuits are uncommon...
Sinusoidal to square converter (CB9614E)
This shield circuit uses a common CMOS port. The voltage depends on the interfaced logic. The...