Switch with automatic shutdown (CB21258E)

This circuit was found in Maxim documentation from the 1990s. The RC circuit determines the trigger time.

15 V x 1 A Power Supply Using the LM723 (CB862E)
The output voltage is adjusted by the trimpot. The power transistor mist be mounted on a heatsink. The 3.9...
LED with color switch (CB20909E)
Found in an old Popular Electronics this circuit causes a bicolor LED to alternate the colors of...
Voltage Follower (CB4897E)
In a voltage follower the gain is unitary. Input impedance is too high and output impedance too low....