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Circuit diagrams for radio amateurs
Antenna
Shortwave antenna
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Generators, heterodynes
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The signal limiter, compressor
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Display #
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All
Articles
Title
Hits
Electronic Die
484
Electronic Locker
469
Electronic Siren
567
Electronic Siren based NE555
466
Fire Alarm Using Thermistor
437
Fire Alarm with LDR Sensor
481
Flame, gas and smoke detector
921
Flip-Flop Using CMOS NAND Gates
419
Fridge Door Alarm Circuit
442
Gated Alarm
437
General-Purpose Alarm
498
Hard Disk Switch
1082
Heat Detector + Siren
641
Home Network for ADSL
522
Home remote control for 220 volts
619
How to choose a microwave
766
How To Connect Two Computers Using Modems
462
Infra-red Light Barrier Using 555
396
Infra-red Receiver
432
Infra-Red Sensor/Monitor
683
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