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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
Lighting
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
Other
Main
Radio transmitters
Radio transmitters
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Articles
Title
Hits
Electronic ear
1390
FM transmitter with an effective range of 300 meters
2125
Microtransmitter with FM transistor
1822
Miniature radio transmitter on tunnel diode
3083
Miniature radio transmitter powered by a battery for electronic watches
1316
Radio 144 MHz
3414
Radio receiver AM signals on a special chip
1196
Radio receiver AM signals with a fixed frequency setting
1129
Radio receiver with AM signals high sensitivity
3452
Radio transmitter with frequency modulation in the frequency band 100-108 MHz
1106
Radio transmitter with high frequency stability of the master oscillator
1040
Radio transmitters with wideband FM in the frequency range 65-108 MHz
1400
Radio with AM in the frequency range 27 to 28 MHz
1257
Radio with AM in the frequency range from 27 to 30 MHz
1072
Radio with FM in the frequency range 1-30 MHz
1315
Radio with FM in the UHF frequency range MHz 61-73
1059
Receiver FM signals high sensitivity
2705
The 144 MHz Transmitter
3481
The bug, not needing the transmitting antenna
1065
The narrowband FM radio transmitter frequency range 140-150 MHz
1635
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