This circuit was found in an Electronic Design from the 90's. It makes use of components from the time. Triac is according to the controlled load.
Found in an Electronics World of 1969, this circuit causes a light bulb to flash along with the...
This car circuit can be used in other applications with the proper choice of resistor. We found it in...
This simple TTL digital amplifier uses NAND gates and a high impedance speaker. ...