Two Time Constant Tone Decoder (CB6200E)

This circuit is from a 1980s documentation featuring two time constants for sound decoding. The integrated circuit is not common today.

Two-tone solar buzzer (CB20493E)
This circuit was found in a 1991 publication. The transistor can be a general-purpose type....
LM5170 Q1 Bidirectional Current Controller
July 2017 - Texas Instruments' new bidirectional current controllers LM5170-Q1 for power...
IR Monostable (CB874E)
The duration of the output pulse in this circuit depends on C. This capacitor can have values in...