5 V reference LT1027 (CB14595E)

This circuit is from the 1993 Linear Technology Applications Databook. The component is uncommon today.

Light or Shadow Relay Using the LM324 (CB11617E)
This circuit uses LDRs as sensors and can either detect the incidence of light on the sensor or...
5 V switched regulator (CB8702E)
This switched regulator configuration was found in Motorola's 1969 documentation. The integrated...
1A Flasher (CB9790E)
This circuit was obtained in a transistors manufacturer's manual from the 90s. The circuit uses an...