One of the best ways to relive the past is with vintage equipment. Chuck Gloman stepped in to save a Silvertone clock radio ...

A flip-flop in digital ... is a synchronous Circuit and is also known as a gated or clocked SR latch. SR Flip Flop Circuit In this circuit diagram, the output is changed (i.e. the stored data is ...

There’s no microcontrollers or digital ... relies on two 555 timer ICs as the oscillators and an LM741 op-amp. These parts harken right back to the dawn of the integrated circuit era, and ...

[R-B] designed a 555 timer circuit to scan a keypad. Keypads are common interfaces for small projects and require row and column scanning by a microcontroller. [R-B’s] setup allows you to reduce ...