Current to voltage converter (CB7332E)

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

High Intensity Pulse Generator (CB18912E)
A small voltage-boosting transformer is used in this pulse generator circuit found in...
Mini MW Transmitter (CB10307E)
This circuit was found in a 1964 magazine, which no longer exists. It is a small wireless...
Timer and Power Circuit (CB16423E)
This circuit was found in a 1980 documentation. The triac used is of the TIC226D type which in the...