Digital Memories Tutorial

With this circuit, we can have a acoustic clue, frequency 2KHZ, when we have a short vibration in...

This simple amplifier is ideal for adding a headphone jack to equipment that lacks this feature....

To operate a small motor used for opening and closing a pair of curtains. DC motor has six basic...

The parallel arrangement of LED backlights allows the control IC to utilize inexpensive low...

My original BFO, a small EICO 330 solid state signal generator, served well to bring in a variety...

The leads from the transformer to the circuit are quite long (>5m). Apparently the 110V side of...

FM amplifier is used for amplify signal from exciter in broadcast radio station. In this page, RF...

This device ensure a lot of implementation possibilities because it has wide input voltage range...

Major role in the PLL phase detector is held by the duty comparing the input phase of the VCO...

Many SWR / Power meter used by amateurs to the extent reasonably accurate continuous average...

Most homes today have at least a few infrared remote controls, whether they be for the...

An ultrasonic beacon and a ultrasonic receiver is very similar to a beam barrier circuit, the...

Chinas national conditions, general living room area of more than twenty square meters, and...

Easy Auto power battery charging circuit Is shown as a simple automatic power battery charging...