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مدارات کليد زني 

 

 

 

  1.   Frost Alarm or Cold Activated Switch

  2.   Dark Activated Switch or Porch Light Switch

  3.   Electronic Keypad by Ron J

  4.   Light Detector Circuit by Mick Devine

  5.   DC Push Button Motor Control Circuit

  6.   Push Button Switch Debouncer

  7.   Remote Doorbell Indicator

  8.   Doorbell with Counter

  9.   Digital Combination Lock

  10.  Electronic Night Light

  11.  Sound Operated Switch

  12.  Voltage Comparator Switch

  13.  DC Motor Reversing Circuit

  14.  Water Activated Relay by Marin Lukas

  15.  Triac Light Controller by Matthew Hewson

  16.  Negative Voltage Load Switch by Nicholas Choong

  17.  Voltage Controlled Switch by Miroslav Adzic

  18.  Camera Switcher by Milano de Guzman

  19.  Universal 4 Digit Keypad Operated Switch by Ron J

  20.  Keypad Operated Switch No.2 by Ron J

  21.  Electronic Door Release by Ron J

  22.  Light Controlled Relay Switch by Ron J

  23.  Schmitt Trigger

  24.  Temperature Controlled Relay Circuits by Ron J

  25.  Toggle Switch No. 1 by Ron J

  26.  Thermostat with Adjustable Hysteresis by Ron J

  27.  Toggle Switch No. 2 by Ron J

  28.  Latching Switch

  29.  AC Switch

  30.  Keypad Combination Lock

  31.  Toggle Switch No. 3 by Ron J
 


  1.   AM Receiver

  2.   MW Active Antenna

  3.   Q- Multiplying Loop Antenna

  4.   4 Band Double Tuned Preselector

  5.   ZN414 Portable AM Receiver

  6.   SW Receiver using the ZN414

  7.   2 Transistor FM Transmitter

  8.   FM Transmitter

  9.   FSM Field Strength Meter

  10.  
Simple Field Strength Meter

  11.  4 Transistor Transmitter by Paul K Sherby

  12.  
FM Transmitter with Opamp by Kamram Ahmed

  13.  
UHF TV Preamplifier

  14.  ATL3 Loop Antenna by Graham Maynard

  15.  
Surveillance Transmitter Detector

  16.  AM Transmitter

  17.  6 x 6 Antenna Loop by Graham Maynard

  18.  
2 Transistor Transmitter by Rob

  19.  
MPF102 FM Receiver by Patrick Cambre

  20.  
SW RF Pre-Amplifier

  21.  Band 2 Preamplifier

  22.   Bipolar Regenerative receiver by Ramon Vargas

  23.  
Crystal Controlled Oscillator by Ramon Vargas

  24.  
Short Wave Regenerative Receiver by Ramon Vargas

  25.  
FM transmitter by David Celestin

  26.  
Automatic Repeater by Miroslav Adzic

  27.  
MK484 AM Receiver by Chad Castagana

  28.  
TV Transmitter by David Kwaku Celestin

  29.  
The Modern Armstrong Regenerative Receiver (in PDF Format) by Ramon Vargas

  30.  
30 Watt VHF Amplifier by David Celestin

  31.  
Antenna Tuning Unit

  32.  Sensitive DX TRF Receiver external link to Husnu Kokturk's web site

  33.  
49MHz Walkie Talkie Circuit External Link

  34.  
Medium Wave DX Receiver external link to Duncan's in New Zealand

  35.  
136 KHz Receiver by Claudio Pozzi, IK2PII

  36.  
40 Meter Popcorn Superhet Receiver by VE7BPO

  37.  
Long Range FM Transmitter by Viswanathan Prakash



کنترل  

 

  1.   Infra Red Remote Control Extender Mark 1

  2.   Infra Red Remote Control Extender Mark 2

  3.   Infra Red Remote Control Extender Mark 3

  4.   Infra Red Remote Control Extender Mark 4

  5.   Which Remote Control Extender do I build ?

  6.   Parallel PC Interface NB:- This is an external Link to the Scumari Technology site.

  7.   Multi Launcher for model rockets

  8.   Infra Red Switch

  9.   Model Rocket Launch Controller by Matthew Hewson

  10.   IR Link by Ron J

  11.   IR Modulation Detector

  12.   R5000 Receiver Interface

  13.   Infra Red Remote Control Extender Mark 5

  14.   IR Extender using PIC Micro-Controller External Link to Pete's world

  15.   Electric Curtains

  16.   A Passive Ethernet Hub by Miroslav Adzic

  17.   Small Home Controller by Peter Addante

  18.   Infra Red TV Extender by Guy Bocquillon

  19.   Computer Output Interface

  20.   3 Digit Display Scoreboard by Milardo de Guzman
 


 

 


      2 Watt Amplifier 
      ECM Mic Preamplifier

     Tone Controls

     Stereo Line Driver

     TDA2030 8 Watt amplifier

     Audio Notch Filte

    6 Input Mixer 


   Hi-Fi Pre-Amplifier 

   Peak Reading Audio Level Meter

   Doorphone Intercom 

   Computer Microphone

   100 Watt Amp Circuit

    3 Band Equalizer

   Voice-Over Circuit

    Quadraphonic Amplifier

    15 Watt Amplifier 

     Audio VU Meter  

      Soft switching Amplifier with Tone Controls

    Audio Level Meter

    Dynamic Microphone Amplifier

    Headphone Amplifier

      Low Voltage Preamplifier

    Class A//A-B 100W Amplifier 

    Vinyl Amplifierd

     Op-Amp Microphone Preamplifier

    Buffer Amplifier 

     The Gem Amplifier 

   150W MP3 Car Amplifier 

    24 Watt Class A Amplifier 

  32 Watt Stereo Amplifier

    200 mW Watt Stereo Amplifier

   2 Watt Amplifier 


  سه سطح براي ميزان صدا

10 Watt Audio Amplifier
10 watt audio power amplifier using discrete transistors (includes PCB layout)
100W Guitar Amplifier
100W RMS Amplifier
110mW emitter follower audio power amplifier
12 dB Amplifier and High Current Line Driver with DC Servo (PDF)
13.5 Watt Power Amplifier using a TL081 opamp and TIP125 / TIP120 power transistors
150W audio amplifier that's cheap to build using TIP142 / TIP147 Darlington power transistors
16 Watt amplifier
20 dB Amplifier and High Current Balanced Line Driver
20 Watt / Channel Stereo Power Amplifier
20 Watt Audio Power Amplifier
20 Watt Class-A Power Amplifier
22 Watt Audio Amplifier
22 Watt Stereo Amplifier using TDA1554
22W Audio Amplifier
25 Watt MOSFET Audio Amplifier using IRF532 / IRF9532 hexfet transistors for output stage
25W MOSFET audio amplifier
2W Audio Amplifier using BD139 and BD140 transistors
300W Subwoofer Power Amplifier
300W Subwoofer Power Amplifier
30W ultra-low distortion audio power amplifier
360W RMS into 8 ohms or 550W RMS into 4 ohm audio power amplifier
4 channel power amplifier with bi-amping and bridging options
4W amplifier
50 Watt Amplifier
50W Amplifier
50W audio amplifier using ICL8063
50W audio power amplifier
8 Watt amplifier
8 watt audio amp
Ampliefied speaker, built for MP3 player but can be used with other headphone only devices (PDF)
Amplified ear for surveillance
Amplifier based on LM4780 including a thermal shutdown feature
Audio Amp Output Power Limiter
Audio amplifier output relay delay
Audio amplifier with squelsh-control
Build a good Audio Buffer Amplifier
Class-A/AB Amplifier delivering 100W into a 4 ohm load
Class-C power amplifier
CMoy pocket headphone amplifier
Compact 50W Integrated Amplifier with Meier Headphone Section
Crest Audio LT Series LT100, LT1500 and LT2000 Schematic Set - class D amplifier (PDF)
Death of Zen (DoZ) - A New Class-A Power Amp
DIY Headphone-Amplifier with Natural Crossfeed
DPA 220 amplifier schematic
DPA 440 amplifier schematic
DPA 880 amplifier schematic
Easy to build DIY 50W amplifier based on ICL8063
El-Cheapo - A Really Simple Power Amplifier
Five Tube Stereo Amplifier
Hammonator Organ to Guitar Amp Conversion (tube amplifier)
H-Bridge Power Amp circuit diagram and SPICE simulation files
HeadBanger Headphone Amp
Headphone amplifier based on 12AX7 tubes
Headphone monitor amp
Headphone practice amplifier
Hi-Fi Headphone Amplifier
High quality exponential VCA
LM380 2.5 watt audio amplifier circuit
Low impedance microphone amplifier
Low Power Audio Amp Experiments
Low power audio amplifier circuit based on LM386
Low power audio amplifier using BC109C along with BD679 and BD680 Darlington pairs
Mini bench amplifier (LM386)
Miniature audio amplifier
Mini-MosFet Audio Amplifier
More Discrete BJT, Low Power AF Amp Experiments
Potpourri of Transistor Audio Amplifier Circuits
Quadraphonic Amplifier based on pair of LM1877 devices
Ruby is an "enhanced" version of the Little Gem battery-powered amplifier (LM386 based design)
Selection of Integrated Circuit Audio Amplifiers
Simple 0 to 24 dB Gain Amplifier and Balanced Line Driver (PDF)
Simple 200W audio amplifier
Simple Class A Amplifier - 10W audio output
Simple class-D amplifier based on 555 pulse width modulator
Single Chip 50 Watt / 8 Ohm Power Amplifier
Single Supply Simple Mosfet Audio Power Amplifier Design
Small audio amplifier based on LM386
Small bench amplifier ideal for testing audio stages in circuits
Soft-Start Circuit For Power Amps
Soft-Start Circuit For Power Amps
Spatial Distortion Reduction Headphone Amp
Speech Amplifier Box
Stereo audio amplifier based on TDA2822M
Super linear Headphone amplifier
Super Simple 3 Watt Audio Power Amplifier based on TDA1015
TDA2030 8 Watt amplifier
Thermo-Fan To Keep Your Amp Cool
Tube amplifier
Two 9v battery-powered amps based on the LM386. Schematic and PCB/perfboard layouts.
Two Transistors Audio Amplifier
Variable Amplifier Impedance
Voice Amplifier



 

Download Power MOSFET Basics_English
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Everyday Practical Electronics - July 2010




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Everyday Practical Electronics No.01 - January 2011




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Nuts and Volts - December 2010





Nuts and Volts - December 2010English | 84 pages | PDF | 14.20 mb
Nuts Volts is the leading magazine for those seriously interested in electronics. There now remain only a handful of magazines written for the electronics community with Nuts Volts being the highest readership, longest running electronics publication left in the US today. And we still have readers and advertisers that have been with us since the early 80s. Nuts Volts is written for the hands-on hobbyist, design engineer, technician, and experimenter. The diversity of subjects appeals to all levels of experience and spans such topics as amateur robotics, circuit design, lasers, computer control, home automation, data acquisition, new technology, DIY projects, electronic theory, analog, and myriad microcontrollers.




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Nuts and Volts - January 2011



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Nuts and Volts - January 2011English | 84 pages | PDF | 24.70 mb


دانلود مجله elektor

Elektor Electronics No.12 (December 2010) / En




Elektor Electronics No.12 (December 2010) / En
PDF | 72 pages | English | 18 mb


"Elektor Electronics" - a popular magazine on electronic components and circuitry. On a magazine site it is possible to find additional materials to articles (insertions of controllers, drawings of printed-circuit boards).


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Nuts and Volts No.9 - September 2010





Nuts and Volts No.9 - September 2010
True File type: PDF | 84 pages | English | 13.55 mb

http://hotfile.com/dl/62971559/fe53d..._2010.rar.html

Everyday Practical Electronics February 2010





Everyday Practical Electronics February 2010
File type: PDF | English | 74 pages | 24.73 mb

The No 1 UK Magazine for Electronics Technology Computer Projects
Projects | Theory | News | Comment | Popular Features


http://rapidshare.com/files/40933398...10-02.rar.html

مجله رباتيک Servo - December 2010



Servo - December 2010English | 84 pages | PDF | 15.50 mb

SERVO Magazine is a monthly robotics publication produced by TL Publications.It has been an active member of the robotics community, sponsoring such events as the FIRST Robotics Competition, the Robonexus robotics convention, and the Tetsujin robotics competition.


http://hotfile.com/dl/82563226/9f87c...01012.rar.html

New Electronics September 2010




New Electronics September 2010
PDF | 48 pages | English | 18.05 mb
With its blend of technology features, news and new product information New Electronics keeps designers and managers up to date with the fastest moving industry in the world.


http://hotfile.com/dl/75835648/78fd2...rosep.rar.html


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