Xtronic Free Electronic Circuits and Informations

Circuit Audio and RF Signal Investigator with LM386 – Tool for maintenance of audio equipment

Toni — Fri, 25 May 2012 05:26:10 +0000

The Investigator of the audio signal and RF, also known as Signal Tracer is a tool that can not miss on the bench interested in audio equipment, amplifiers either in assembly or maintenance of audio equipment. Even with simple construction, it is quite necessary to detect defects more quickly. As a follower of the audio [...]

Download Tables of equivalences – SMD components – transistors and diodes

Toni — Mon, 30 Apr 2012 05:33:47 +0000

SMD devices are, by their very nature, too small to carry conventional semiconductor type numbers. Instead, a somewhat arbitrary coding system has grown up, where the device package carries a simple two- or three-character ID code. Identifying the manufacturers’ type number of an SMD device from the package code can be a difficult task, involving [...]

Download Software 555 timer calculator Astable and Monostable, time, resistor, capacitor, and frequency calculator

Toni — Thu, 19 Apr 2012 05:56:04 +0000

Software 555 timer calculator Astable and Monostable, time, resistor, capacitor, and frequency calculator The 555 timer is an extremely versatile integrated circuit which can be used to build lots of different circuits. You can use the 555 effectively without understanding the function of each pin in detail. Frequently, the 555 is used in astable mode [...]

Fake Car Alarm Circuit – 555 led Flash

Toni — Tue, 17 Apr 2012 16:00:26 +0000

Simple circuit simulator false alarm for cars or home, based on an integrated circuit timer 555, just to simulate the existence of an alarm in your car. Using an LED to simulate that “little light” that flashes indicating that the car alarm is activated. the circuit is based on the 555, mounted as astable oscillator, [...]

Simple Circuit – Stereo audio amplifier using IC LM386 – 2 x 500 mW – Includes PCB and Power Supply

Toni — Tue, 17 Apr 2012 04:31:52 +0000

This is an audio amplifier using two National Semiconductor LM386 (Texas Instruments). Basically this involves the use of two amplifiers as posted on another item with a time ago. However this time includes the printed circuit board for stereo version, and power supply. The circuit operates power supply or batteries 6-12 volts. The yield is [...]

Download IC Database- Software with information on more than 100 thousand integrated circuits, transistors and their substitutes – By Burosch

Toni — Wed, 04 Apr 2012 15:20:51 +0000

IC Software Database dated 2003 with database information from more than 100,000 semiconductors such as transistors and integrated circuits. As is information encapsulation, function, pinout, technical data, comparing types: Analog, Linear, Digital, Microprocessor, Microchip, CPU, Ram, Rom, Gal Pal, EPLD, Eeprom, Transistors, Darlington Transistors, Fet, Mosfet, Ujy , Put, Diode, Zener Diode, Thyristor, Triac, Diac, [...]

Download HamCalc v1.3b – collection of calculators, for radio amateurs

Toni — Wed, 04 Apr 2012 04:00:43 +0000

HamCalc is a collection of calculators, for radio amateurs, presented as a series of ‘Tabbed’ pages. Antenna ERP calculations. Attenuator calculations. Audio filter design. Coil Winding. Decibel calculations. Great-Circles map and calculator. HF Filters. HF Antenna Traps. Op-Amps. QRA Locator to Latitude/Longitude (and back). Radio Horizon calculator. Satellite Orbits. Timers. Zener Diodes. Resonance and bandwidth. [...]

Download TransistorAmp 1.1 – free software for the design of bipolar transistor amplifiers

Toni — Sat, 31 Mar 2012 06:06:28 +0000

Design your own bipolar transistor amplifier quick and easy – with TransistorAmp 1.1 software. You want to design a bipolar transistor amplifier and you search for an easy way to do this. Maybe, you have already found some formulas in a book and you are confused and discouraged because of the complexity. Furthermore, you need transistor [...]

Download PDF – ST Microelectronics Bipolar Transistors Cross Reference

Toni — Fri, 30 Mar 2012 05:41:48 +0000

PDF file with 35 pages of equivalence of bipolar transistors from ST Microelectronics. The specific information is found on a table with three columns, INDUSTRY STANDARD, ST REPLACEMENT and ST NEAREST PREFERRE. Ideal for finding a transistor equivalent, if not at hand or do not find a specific model of a transistor to design or [...]

Download Sgs-Thomson bipolar transistors cross reference

Toni — Fri, 30 Mar 2012 05:34:20 +0000

This PDF of SGS-THOMSON with 45 pages of information on equivalence between transistors industry standard, the same model manufactured by SGS-THOMSON and Equivalent closest to.

Download E-book CMOS Logic Data – ON Semiconductor

Toni — Fri, 30 Mar 2012 05:29:07 +0000

This book presents technical data for the broad line of CMOS logic integrated circuits and demonstrates ON Semiconductor’s continued commitment to Metal–Gate CMOS. Complete specifications are provided in the form of data sheets. In addition, a Product Selector Guide and a Handling and Design Guidelines chapter have been included to familiarize the user with these [...]

Circuit Stereo Preamplifier With IC TDA1524A – Tone Control Unit – Bass Treble volume control, channel balance and loudness contour

Toni — Wed, 28 Mar 2012 06:30:02 +0000

Stereo preamplifier circuit based on the Integrated Circuit TDA1524A. Contains components for amplification and pre Tone controlling. The signal processing is done by the voltage controlled TDA1524A. This manufactured by Philips IC (NXP) Semiconductors, allows for tone control voltage and can be used in more complex designs using microcontrollers. Here we use linear potentiometers to control [...]

Download BBox – Assets and liabilities (crossover) filter calculation, and more

Toni — Tue, 27 Mar 2012 04:53:36 +0000

Bbox active (opamp) passive (rlc (crossover) filter is free to design a quality program also has different have a list below of the calculations made by the program Active filter design options: Highpass 12db, Highpass 18db, Highpass 24db, Lowpass 12db, Lowpass 18db, Lowpass 24db, EQ for URPS Passive filter design options: Lowpass 6db, Lowpass 12db, [...]

Download LED resistor calculator for windows v1.0 – By electronicsblog.net

Toni — Tue, 27 Mar 2012 04:13:40 +0000

Simple and functional program for calculation of current limiting resistors for circuits with LEDs. The software is simple and takes aim, you enter the data source voltage, voltage and current through the LED (clicking? You can choose between the usual values), making it and clicking Calculate the software you will pass the information value resistor [...]

Download X24 Led Calculator – LED limiting resistor calculator and 4N25 optoisolator Multi-LED resistor calculator

Toni — Mon, 26 Mar 2012 04:49:50 +0000

This is just a simple LED limiting resistor calculator I wrote in VB. It helps you determine the resistor value you need for your mod LED projects. It can show the actual calculated resistor value and the nearest higher standard resistor value. The standard resistor values are based on the listing in the Digikey catalog. [...]