Here is the specification of the transmitter: No. of stage: 4 Frequency of operation: About 100MHz Antenna type: Folded 300 ohms dipole. Range obtained in free space: Up to 4km with dipole antenna 30 feet above ground level. More range with yagi … Read more »
Professional CadSoft Eagle 7.5.0 (82.78 MB) is a comprehensive tool for PCB design, since the scheme and ending with the creation of the card and its traces. The program has a fairly large library of standard electronic components and is quite commo… Read more »
Electrical wires are fixed onto the board, connecting a central processor to other components on the board. Nearly all electronic devices contain one or even more printed circuits boards. The award winning EAGLE is a powerful and flexible PCB design… Read more »
Do you need a free PCB design software or tool to put in practice the new electronic project you’ve just designed? So, we present you 10 of the best PCB software tools available on the internet that will help you to develop your printed circuit boar… Read more »
The ExpressPCB CAD software is very easy to learn and use. For the first time, designing circuit boards is simple for the beginner and efficient for the professional. Best of all, its FREE. Our electronics design software includes two applications, … Read more »
Project Summary This circuit is a relay driver that is based on a PIC16F84A microcontroller. The board includes four relays so this lets us to control four distinct electrical devices. The controlled device may be a heater, a lamp, a computer or a m… Read more »
The first thing you will notice is the clever circuitry. Some of the design goes against everything we have learnt in electronics. That’s why we have to study other people’s designs and realise “the more you know, the more you realise you don’t know… Read more »
Description The main part of this doorbell circuit are two NE555 timer ICs.When some one presses switch S1 momentarily, the loud speaker sounds a bell tone as long as the time period of the monostable multivibrator built around IC1. When the swit… Read more »
Source : - angelfire.com/vt/audio/ … Read more »
This amplifier is based on the PA100 parallel amplifier detailed in National Semiconductor's application note - AN1192. Since my DIY speaker is 4-ohm and somewhat difficult to drive, I want to have a more powerful amplifier to match with it. Therefo… Read more »
The crossover network is intended for use when an existing audio installation is to be extended by the addition of a subwoofer. Often, this additional loudspeaker is one that has been lying around for some time. If its frequency response extends … Read more »
A simple and efficient PWM lamp dimmer using timer IC NE555 is discussed in this article. Yesterdays linear regulator based dimmers can only attain a maximum efficiency of 50% and are far inferior when compared to the PWM based dimmers which can hi… Read more »
How to Connect two or more transistors in parallelWhile making power electronic circuits, configuring the power output stage correctly becomes very crucial.These stages primarily may consist of power devices like the power transistors or MOSFETs.Usi… Read more »
This electronic siren gives out a continuously varying high amplitude sound. Since the supply voltage is not critical, it can be used in cars, motor cycles or at home. It can replace the ordinary call bell. - . The circuit consists of two separate f… Read more »
The following couple of circuit diagrams provide a glimpse of the configuration for making a precision rectifier and direct coupled power source circuits. Precission Rectifier circuit diagram. Direct Coupled Power Circuit Diagram CMOS Power Booster… Read more »