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DXR Electronics Bits

Electronics and Technical resources from vu3dxr

Tag: cw transmitter

Build a Simple 40 Metre CW Transmitter Using 2N2222
CircuitsQRPTransmitter

Build a Simple 40 Metre CW Transmitter Using 2N2222

adminJuly 23, 2025August 28, 2025

Looking to experiment with amateur radio on the 40-metre band? This Simple 40 Metre CW Transmitter Using 2N2222 is a…

80 meter 1W QRP Transmitter with Ceramic Resonator Control
CircuitsDIYQRPTransmitter

80 meter 1W QRP Transmitter with Ceramic Resonator Control

adminJuly 12, 2025August 28, 2025

This ceramic resonator controlled QRP transmitter delivers 1 watt of power across the 80-meter band (3.52 to 3.59 MHz). The…

Build Your Own 80M CW Transmitter from Scratch
QRPTransmitter

Build Your Own 80M CW Transmitter from Scratch

adminJuly 3, 2025August 28, 2025

Amateur radio enthusiasts often find themselves drawn to the art of building their own equipment. Moreover, constructing a continuous wave…

Simple CW 74HC240 Transmitter using buffer IC
CircuitsQRP

Simple CW 74HC240 Transmitter using buffer IC

adminJune 23, 2025August 28, 2025

Are you interested in amateur radio and want to build your first CW (Continuous Wave) transmitter? This simple yet effective…

G4RAW 80M QRP TAG CW Transmitter
CircuitsQRP

G4RAW 80M QRP TAG CW Transmitter

adminFebruary 1, 2022August 28, 2025

G4RAW 80M QRP CW Transmitter: The original version was built on tag strip, hence the name.  For PA, we can…

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