Voltage Monitor MC34064 (CB14536E)

The component used in this circuit is uncommon today. The circuit is from Motorola's 1990 Linear Databook.

Light Controlled Flasher (CB23526E)
This circuit with LDR and neon lamp has its operating frequency given by the light. The circuit is from...
Combined light and dark switch (CB7869E)
Found in American documentation from the 90s, this circuit can be used as a shield with the...
567 Tone Switch (CB25789E)
This tone recognizer circuit that relies on R5 and C1 was found in the December 1994 issue of...