Analogue Filters Tutorial

The circuit uses independent timers to flash two light emitting diodes. Any time that light...

The transceiver is composed by three single sided printed boards 100x70 mm, theese may be...

You'll find that this is a very easy project to build. It will transmit good quality sound in the...

A simple bridge rectifier and a 12-V regUlator powers the MOSFET sensing circuit. The unregUlated...

The circuit, a general-purpose system with many uses, vocalizes 59 allophones contained in the...

A high-gain amplifier using a UA741 is used to sense relative voltage drop in a conductor, and...

This oscillator-driver produces a deafening sound of about 3 kHz, modulated with a 10-Hz warble....

This doorbell circuit produces a low tone that will slide up to higher frequency. The equivalent...

Have already gone through 3 stages till a few days ago in the developing of street lamp control...

This is a simple preamplifier circuit for electret condenser microphone. using a LM1458 dual op...

This is a simple design for wideband output amplifier. The wideband amplifier is suitable for use...

This is a simplest circuit for 100 watt inverter for generating 220vAC from 12vDC. I say simplest...

This module is a "tribute" module, based on the awesome Steiner-Parker Synth VCF. Those who know...

A preamplifier operating on a single supply and suitable for use with high impedance type crystal...

The BQ2000 is a programmable, monolithic IC for fast-charge management of nickel cadmium (NiCd),...

The Fuel and Temperature gauges as used in the 1960 - 1965 Ford Falcon are very basic instruments...

The Global Positioning System (GPS) relies on more than two dozen GPS satellites orbiting the...

Circuit shown in Figure 3-13. Figure, RC surge absorption circuit is, R, zinc oxide varistors...