Current to voltage converter (CB7332E)

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

Signal Level Shifter (CB4931E)
The purpose of this circuit is to match two operational amplifiers that operate with different...
330 V power supply (CB6420E)
This low current circuit is suitable for powering the previous circuit and other strobe lamp...
LED Test Using the Oscilloscope (MSB008)
The LEDs act as diodes, so if good they will show the same characteristic curve. Arrangment shown...