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Circuit diagrams for radio amateurs
Antenna
Shortwave antenna
Antenna amplifiers
Television aerials
VHF antenna
Audio
Auto electronics
Batteries, chargers
Electric car scheme
Electronic devices
Electronic fuel injection
Ignition system
Security devices and alarm
Speedometers and tachometers
Power supplies
Radio transmitters
Telefonie
Consumer electronics
Bells and audio simulators
Clocks, timers, relays, load switches
House, garden land, hobby
Indicators, detectors
Metal detectors
Power controllers, thermometers, heat
Other
Field strength detector
Medicine
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Wireless microphones
Television and video
Nodes of radio engineering
Generators, heterodynes
Quartz filters
Modulators
The signal limiter, compressor
Mixers, frequency converters
Filters and matching devices
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Main
Nodes of radio engineering
Generators, heterodynes
Generators, heterodynes
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Articles
Title
Hits
A continuous wave generator
760
A little about GPA
889
A pulse generator for blinking the led
937
A simple generator for learning Telegraph alphabet
715
A simple PWM generator
871
A stable crystal oscillator
994
About frequency stabilization GPA
874
Acyclic crystal oscillator
878
Alternator - tester CC
873
Barrier generators RF bipolar transistors
808
Coaxial cable - inductance coil
838
Converter 144/27 MHz with a smooth lo
2518
Crystal oscillator
970
Crystal oscillator with electronic switching
827
Design M. Erofeeva
986
Designed By A. Martina
800
Digital AHR in lo
1367
Dual frequency generator for blinking the led
1611
Dvukhchastotnyi crystal oscillator
682
Experiments with quartz supergenerators
834
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