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DXR Electronics Bits

Electronics and Technical resources from vu3dxr

Category: Transmitter

Build Your Own Micro Power AM Transmitter!
CircuitsDIYQRPTransmitter

Build Your Own Micro Power AM Transmitter!

adminJune 23, 2025August 28, 2025

Build Your Own Micro Power AM Transmitter! Ever wanted to broadcast your own tunes or messages a short distance? This…

Class C – AM Transmitter
CircuitsQRPradioTransmitter

Class C – AM Transmitter

adminApril 22, 2024July 6, 2025

Class C – AM Transmitter Class C AM transmitters rule the amateur radio world. These solid-state transmitters deliver high efficiency…

Simple series modulated AM QRP HF Transmitter
CircuitsDIYradioTransmitter

Simple series modulated AM QRP HF Transmitter

adminSeptember 23, 2023July 10, 2025

A simple series modulated AM QRP HF transmitter is essentially a basic, low-power radio for sending audio signals. Think of…

OXO QRP HF Transmitter
CircuitsDIYradioTransmitter

OXO QRP HF Transmitter

adminAugust 24, 2023August 28, 2025

The OXO QRP HF transmitter is a simple, low-power CW (continuous wave) transmitter designed by George Burt, GM3OXX. It is…

Ten Minute QRP Transmitter
CircuitsDIYQRPTransmitter

Ten Minute QRP Transmitter

adminFebruary 11, 2022June 27, 2025

Ten Minute QRP Transmitter This is a simple crystal-controlled CW (Continuous Wave) QRP Transmitter circuit designed for amateur radio use,…

Circuits – Sovina2 40M Class E Transmitter
CircuitsDIYTransmitter

Circuits – Sovina2 40M Class E Transmitter

adminFebruary 8, 2022August 28, 2025

This is a Class E Transmitter designed for the 40-meter amateur radio band, capable of producing approximately 4.6W output power…

Circuits – Pippin QRP Transmitter
CircuitsQRPTransmitter

Circuits – Pippin QRP Transmitter

adminJanuary 24, 2022August 28, 2025

This pippin QRP transmitter is basically a conventional colpitts type crystal oscillator with output taken from a low value collector…

CircuitsQRPTransmitter

Circuits – 7 Mhz 5 Watts CW Transmitter

adminJanuary 24, 2022August 28, 2025

The above 7 Mhz 5 Watts CW Transmitter circuit was found in one of back issues of sprat. Still i…

CircuitsQRPTransmitter

Circuits – 7MHz CW / AM QRP Transmitter

adminJanuary 19, 2022August 28, 2025

7MHz CW / AM QRP Transmitter   The circuit of a 7MHz CW / AM QRP transmitter described here can be…

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