9 V to 5 V converter LT1175 (CB14616E)

We found this circuit in the 1997 Linear Technology Applications. The components used were common at the time.

Inductive Loads High Power Shield (CB18267E)
This shield, found in old English documentation, appears with variations elsewhere in this section...
Complementary emitter follower (CB7979E)
This complementary or bilateral emitter follower was found in American documentation from the 90s....
Voltage Controlled Zener (CB12226E)
This configuration that functions as a zener diode was found in an English publication from 1976....