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DXR Electronics Bits

Electronics and Technical resources from vu3dxr

Category: Transmitter

The Simple RF Indicator: A DIY Tool for Detecting RF Signals
CircuitsQRPTransmitter

The Simple RF Indicator: A DIY Tool for Detecting RF Signals

adminAugust 26, 2025August 28, 2025

The image depicts a “Simple RF Indicator,” a passive device for detecting radio frequency (RF) signals in coaxial cables. It’s…

Tiny FM Transmitter with Just a Few Easy-to-Find Components
CircuitsDIYTransmitter

Tiny FM Transmitter with Just a Few Easy-to-Find Components

adminAugust 2, 2025August 28, 2025

Build a Tiny FM Transmitter: Minimal Parts, Maximum Fun! This Tiny FM Transmitter is a great example of how powerful…

27MHz AM Transmitter Circuit for hobbyists
CircuitsDIYQRPTransmitter

27MHz AM Transmitter Circuit for hobbyists

adminAugust 1, 2025August 28, 2025

The 27MHz frequency band has long been a favorite among electronics enthusiasts and amateur radio operators. This citizen’s band frequency…

Build Your Own Hidden Transmitter Hunter RF Sniffer Circuit
CircuitsDIYTransmitter

Build Your Own Hidden Transmitter Hunter RF Sniffer Circuit

adminJuly 28, 2025August 28, 2025

Discover how to build a hidden transmitter hunter using a simple RF sniffer circuit. Ideal for transmitter hunts, bug tracking,…

Build a Miniature FM Transmitter – DIY Electronics Project
CircuitsDIYTransmitter

Build a Miniature FM Transmitter – DIY Electronics Project

adminJuly 25, 2025August 28, 2025

Miniature FM Transmitter is a compact and effective project ideal for experimenting with radio communication. Whether you’re a student or…

DIY 3-Transistor FM Bug Transmitter Using Piezo Mic
CircuitsDIYTransmitter

DIY 3-Transistor FM Bug Transmitter Using Piezo Mic

adminJuly 23, 2025July 23, 2025

Ever wanted to build a simple FM bug transmitter for short-range audio monitoring? This compact and low-power 3-transistor FM bug…

How to Build a 3-Watt AM Radio Transmitter
CircuitsDIYTransmitter

How to Build a 3-Watt AM Radio Transmitter

adminJuly 23, 2025August 28, 2025

Radio frequency (RF) electronics presents an intriguing convergence of theoretical concepts and real-world implementation. For enthusiasts and engineering students, building…

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…

Simple FM Transmitter Using BC547 Transistors
CircuitsTransmitter

Simple FM Transmitter Using BC547 Transistors

adminJuly 22, 2025August 28, 2025

If you’re a radio electronics enthusiast or hobbyist, building a Simple FM transmitter using readily available components like BC547 transistors…

DIY IRF510 AM Transmitter Circuit
CircuitsDIYTransmitter

DIY IRF510 AM Transmitter Circuit

adminJuly 14, 2025August 28, 2025

Are you interested in building your own AM transmitter? This blog post dives into a detailed DIY IRF510 AM transmitter…

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