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این هم لینک مدارات فرستنده های رادیویی
  • UHF oscillator
  • Economoy short-wave radio
  • Linearized RF detector
  • Two-band radio
  • Shortwave conveter for scanners
  • FM Bug
  • AM Radio
  • Toroidal coil RF shortwave receiver
  • Crystal radio
  • CW RECEIVER 40/80 meter CW receiver
  • TRF AM Receiver circuit
  • WLW 500KW Transmitter Schematic
  • AM-Receiver for Aircraft communication (118.250MHz)
  • AM receiver for aircraft communications
  • 80 Meter CW ARDF receiver
  • Four channel RF remote control
  • CW zero beat indicator (PDF)
  • Build your own VLF Receiver
  • Receiver building blocks
  • Simple wireless radio data link
  • RX3302 receiver module schematic
  • Superregenerative 27MHz receiver
  • 49MHz walkie-talkie
  • Convert 2m VHF FM PMR transceiver Motorola Radius M110 into an amateur radio
  • Vibrating pocket bug detector
  • 2MHz RF Oscillator
  • 50-150MHz Overtone Oscillator
  • Simple Op-Amp Radio
  • UHF - 100W Transistorized amplifier
  • 50MHz Converter
  • RF front-end for triple conversion GPS receiver
  • 2M - 20M transverter
  • Improved CMOS RF PLL sythesizer
  • Harmonic oscillator
  • Direction finder system
  • One transistor regenerative receiver
  • Synthesized HF receiver
  • TBA120 narrowband FM receiver
  • TDA7000 receiver
  • ZN414 receivers
  • 10W HF linear amplifier
  • 500W HF linear amplifier
  • 3W HF QRP linear amplifier
  • Phasing SSB exciter
  • 500mW HF linear amplifier
  • Generic VHF power amplifier
  • 10.7MHz FM detector
  • RTTY terminal unit
  • Q-multiplier
  • CMOS RF PLL sythesizer
  • No-tune 10GHz transceiver
  • No-tune 1296, 2304 AND 5760MHz transceiver
  • 13cm PSK transceiver for 1.2Mbit/s packet radio
  • Wide-band FM transceiver
  • 3W FM Transmitter
  • Crystal radio
  • Op-Amp Radio
  • Car radio tunes the Amateur Bands
  • Crystal set that requires no antenna
  • 80m Direct Conversion Receiver
  • A compact L-match ATU for portable use
  • Morse Adaptor for your VHF/UHF FM rig
  • An end-fed antenna, L-match coupler and resistive bridge for HF
  • AM Broadcast Band Regenerative Receiver
  • 50 MHz to 146 MHz Converter
  • Hear Amateurs on your Shortwave Radio!
  • Compact 20 14 MHz direct conversion receiver
  • Hear Amateurs on your FM Radio!
  • RF actuated CW monitor
  • LF to HF Converter
  • Super 80 ultra-simple SSB receiver for 3.5 MHz
  • Class B series modulator
  • L-Band PHEMT LNA for GPS, Inmarsat etc
  • Advanced VHF power meter
  • The MRX-40 Mini Receiver
  • Phase Shift Radio Direction Finder
  • 23cm Data Transceiver
  • AM Broadcast Band Active Antenna
  • Active antenna with gain
  • Ham Band VFO
  • HF Signal generator
  • Simple AM Radio Receiver & Amplifier
  • Bug detector
  • 175KHz inductive pulse receiver (PDF)
  • 200-400 MHz voltage controlled oscillator
  • AM/FM/SW active antenna
  • RF Sniffer <.5 to >500 MHz
  • Demodulator Schematic/Design
  • AM BCB radio receiver
  • Regenerative shortwave receiver
  • DSBSC (Double Side Band Supressed Carrier)
  • GPS (L1) Jammer
  • Frequency Synthesizer
  • Digital Automatic Gain Control (AGC)
  • Four Channel Wireless Transmitter and Receiver
  • Talking receiver
  • 418MHz Control RX/TX
  • PLL synthesizing oscillator (1)
  • PLL synthesizing oscillator (2)
  • PLL synthesizing oscillator (3)
  • 2N2222 40 Meter CW/DSB Transceiver
  • Yaesu FT-736R doppler compensation
  • AM receiver
  • Field strength meter
  • MPF102 receiver
  • MW preamplifier
  • Q - Multiplying Loop Antenna
  • SW aerial amplifier
  • Simple field strength meter
  • 4 band double-tuned preselector
  • UHF Amplifier
  • UHF Preamplifier
  • ZN414 AM receiver
  • ZN414 shortwave receiver
  • Phased lock loop schematic
  • 30M PSK31 Transceiver
  • SOP receiver (PDF)
  • SOP direct conversion receiver
  • Receiver
  • 30m direct conversion receiver
  • Popcorn direct conversion receiver
  • 40m direct conversion receiver
  • 80m direct conversion receiver
  • 136 kHz direct conversion receiver
  • One Watt 2.45 GHz Linear Amplifier
  • 222 MHz Transverter
  • VFO from 2001 ARRL Handbook, page 17.74
  • VFO from 2001 ARRL Handbook, page 14.20
  • Assorted RF circuits
  • 14MHz SSB 10mW Transceiver
  • Building a Simple LF Exciter
  • Yaesu band decoder schematic
  • 5 watt, 80 meter QRP CW Transceiver
  • How to Build a 300MHz AM, RF Remote Control System
  • Penncrest 5905 Stereo Receiver
  • Wireless remote control system
  • RF Modem Robotics Project
  • PLL FM transmitter
  • Improved FM Stereo Modulator
  • Smooth Tone Clickless CW Sidetone Generator
  • Variety of receiver converter projects
  • One transistor FM receiver
  • 42 Mc Band to 88 Mc Band (retrofit converter) Project
  • Crystal radio circuits including diode performance comparison
  • 50MHz Assistant (Preamp & Power Amp.)
  • Bug detector
  • Basic RF oscillator
  • AM/FM/SW active antenna
  • Radio Control Electric Switch
  • 56K RF Modem
  • Crossed dipole GPS antenna
  • 80M ARDF direction finder
    • ابوالفضل شنبه 2 اسفند‌ماه سال 1382 ساعت 10:38 ق.ظ
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    لینک مدارات تغذیه و شارژرها
  • Sun tracking circuit for solar arrays
  • Solar power recharger
  • Solar power supply
  • Solar charge controller
  • High efficiency solar powered motor driver
  • Solar robots
  • Solar Tracker
  • 1381 solar engine
  • D1 solar engine
  • FLED solar engine
  • PM1 solar engine
  • Solar car array controller schematic
  • Solar car battery monitor schematic
  • Solar car brake controller schematic
  • Solar car main controller schematic
  • Solar car display controller schematic
  • Solar car electrical design and circuit index
  • Portable solar battery charger
  • Sensor Electronic Tracker with H-Bridge Drive
  • Sensor Electronic Tracker with Simple Solar Charge Controller
  • Solar tracking control system
  • LED7 solar tracker
  • Solar step-down regulator
  • Zener-based solar engine
  • AA battery solar charger
  • AA battery solar charger
  • Solar Panel Charge Controller / Low Voltage Disconnect Circuit
  • Solar Panel Current Meter
  • SCC2 10 Amp Solar Charge Controller
  • Solar Charged LED Flashlight
  • AA battery solar charger
  • Solar Panel Charge Controller / Low Voltage Disconnect Circuit
  • Solar Panel Current Meter
  • Solar cell Nicad charger
  • Solar powered dock lamp flasher
    • ابوالفضل شنبه 2 اسفند‌ماه سال 1382 ساعت 10:37 ق.ظ
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    لینک مدارات تلفن و ارتباطات داخلی
  • Telephone recording circuit
  • Telephone In-Use LED Indicator
  • Telephone In-Use Relay Controller
  • Telephone audio interface
  • Infinity Transmitter Schematic and Plans
  • Digisound ring modulator
  • Incoming call indicator
  • Telephone Ring Generator Using 60Hz Power Transformer
  • Telephone Ring Generator Using Switching Power Supply
  • Telephone In-Use LED Indicator
  • Telephone In-Use Relay Circuit
  • Telephone Audio Interface
  • Home made PBX / PABX
  • Ringing Phone Light Flasher
  • Phone Busy Indicator
  • FM Telephone Bug
  • Cut Phone Line Detector
  • Simple Phone Tap
  • Telephone Hold Button
  • Telephone Recorder
  • Cut phone line detector
  • Simple phone tap
  • Telephone auto record
  • Telephone hold button
  • Telephone recorder
  • DTMF tone decoder (Basic Stamp / SSI-202)
  • DTMF Generator/Decoder
  • Interface cables for various cell phones
  • Nokia 3210 MBUS interface
  • Telephone music on hold box
  • Telephone ring controlled relay
  • 1-line telephone status indicator (PDF)
  • Line in use indicator (PDF)
  • 4-line telephone status indicator (PDF)
  • Caller ID decoder
  • Telephone in use light
  • Detecting a telephone RING
  • Phone In-Use Light
  • Phone to audio interface
  • Phone Off-Hook Indicator
  • 'phone rang' indicator light
  • Phone Line to Audio
  • Phone in-use
  • Telephone Line Monitor
  • Use old phones as an intercom
  • Phone-In-Use indicator
  • Hold function for Telephone
  • Digital/Standard Phone Line Tester
  • Caller ID decoder part 1
  • Caller ID decoder part 2
  • DTMF decoder / logger
  • FM telephone bug
  • Universal telephone hold
  • Talking phone dial monitor
  • Red box detection circuit (PDF)
  • Telephone line simulator
  • Telephone privacy adapter
  • Telephone ringing circuits
  • Simple circuit to connect telephone equipment to audio mixer
  • NCDS Interface Schematic for Nokia 3110, 8110, 8110i
  • Assorted telephone circuits
  • Telephone call director (mini PABX)
  • Phone line sentinel
  • Telephone ring detector
  • Telephone line simulator
  • Cut phone line detector
  • Telephone ring detector - 4N35
  • Phone-line privacy circuit
  • Telephone autodialler
  • Taxi phone automatic dialler
    • ابوالفضل شنبه 2 اسفند‌ماه سال 1382 ساعت 10:34 ق.ظ
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