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Articles
Title
Harmonics and Filters (TEL066E)
Dip Meter (TEL065E)
Micro Transmitter with Buzzer (ART499E)
No-Electret FM Transmitter (ART497E)
AM Radio For Beginners (ART472E)
Percussion Generator (ART446E)
Problems caused by FM transmitters (ART444E)
Antenna Amplifier (ART411E)
Amplitenna (TEL064E)
Shortwave Pre Selector (TEL063E)
UHF Transmitter (TEL062E)
UHF Oscillator (TEL061E)
Wireless Bluetooth Simple System for Stereo Audio (TEL059E)
Radio Control Receiver with Tone Filter (ART355E)
Powerful Radiocontrol Transmitter II (ART354E)
Powerful Radio Control Transmitter I (ART353E)
Detectors Used in Antique Radios (1) (TEL058E)
Spyphone – The Super-Micro FM Transmitter (TEL057E)
Transmissions Through the Earth (TEL055E)
Small Two Stage MW and SW Transmitter (TEL054E)
Wireless FM Event Monitor (TEL053E)
Wireless Event Monitor (Version 1) (TEL051E)
Alert FM Transmitter (TEL050E)
Stereo FM Transmitter (TEL049E)
High Power Varicap FM Transmitter (TEL048E)
Two-Stage FM Transmitter (TEL047E)
How High Frequency Amplifiers Work (TEL045E)
3 to 4 MHz CW Transmitter Using the 4093 (TEL044E)
Modulated 100 kHz to 1 MHz Transmitter Using the 4093 IC (TEL043E)
CD Player and Walkman FM Transmitter (TEL036)

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Circuit Bench

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        The transistor of this constant current source may be the BC548 or equivalent. Resistor R2 may be...

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