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Tag: radio

Explore technical amateur radio projects and DIY guides at VU3DXR. Discover tutorials on RF circuits, receiver mods, and digital modes. Start building today

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Circuits QRP Transmitter

Do it yourself Shortwave Transmitter circuit

January 6, 2022January 21, 2026adminComment(0)

This Shortwave Transmitter circuit operates in shortwave HF band (6 MHz to15 MHz), and can be used for short range communication and for educational purposes. The Shortwave Transmitter circuit consists of a mic amplifier, a variable frequency oscillator, and modulation amplifier stages. Transistor T1 (BF195) is used as a simple RF oscillator. Resistors R6 and […]

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