Current to voltage converter (CB7332E)

This circuit is from a Popular Electronics from the 90s. The integrated circuit admits equivalents that must be tested.

Driver for AC motor (CB8948E)
This AC motor driver circuit was found in Motorola's 1968 documentation. No information was given...
Preamplifier Power Supply (CB18906E)
This is the power supply indicated for the previous circuit (CB18905E) providing a voltage of 24 V...
Dialing detector (CB9304E)
This circuit was found in GE documentation from the 90s. The circuit can be used as a shield for...