The circuit is a triangle waveform generator that uses as few parts as possible. A 555 timer IC, 2 resistors and two capacitors make the triangle wave. The IC is connected in a 50% duty-cycle astable ...

This triangle wave generator is made with a trigger Schmitt that converts a triangle wave into a rectangular one used to charge and discharge a capacitor through current sources. The positive current ...

Circuit City will close 155 stores – but none in the Triangle – as part of an effort to stay afloat, the nation’s No. 2 electronics retailer said Monday. The closings at Circuit City (NYSE: CC) ...