This circuit causes the powered lamp to fluctuate in brightness by 20% intensity. It can be used in other applications. We found it in the April 1998 Electronics Now magazine.
The figure shows how to implement an alarm buzzer in an LM3914 to warn about crossing the scale...
This circuit can act as a shield being controlled by a microcontroller by pin 1 or 2. The...
This circuit was obtained from a 1980's QST magazine. The circuit can generate 1 to 15 MHz signals...