Are you interested in radio electronics? This simple FM band transmitter circuit offers an excellent starting point for beginners and hobbyists. You can build this transmitter using common electronic components and start broadcasting on the FM band.
Circuits
The Circuits category focuses on stand‑alone electronic building blocks that power your radio and audio projects: amplifiers, oscillators, filters, keyers, indicators, test jigs, and more. Instead of full transceivers or big systems, you’ll find focused designs like microphone preamps, push‑pull HF linear amplifiers with IRF510, regenerative receivers, short‑wave transmitters, low‑battery indicators, and timing circuits
Build Your Own Commando AM Transmitter
Build the Commando AM transmitter — a crystal-controlled three-transistor AM circuit with oscillator, buffer, and RF power stages delivering stable modulation for HF experimentation
TL081 Speech Processor for HF Rigs
The main goal of TL081 Speech Processor circuit is to boost, shape and process your voice signal before sending it to the radio transmitter
Build Your Own Grenade AM Transmitter Circuit: A Complete Guide
The Grenade AM transmitter is a fascinating DIY electronics project that combines simplicity with effective radio frequency transmission.
Build Your Own 40M AM Transmitter: A Classic Radio Project
This blog post delves into the construction of a 40M AM transmitter. Perfect for hobbyists offers a fantastic hands-on experience with RF electronics.
Mini FM Radio Transmitter
Have you ever wanted to broadcast your voice, even just a little bit? Well, now you can! This circuit diagram shows you how to build a simple FM Radio Transmitter . It’s a fun project, and it uses only a few basic parts.
Building a Classic Untuned Field Strength Meter
Radio frequency work can be tricky business, especially when you need to measure signal strength without the complexity of tuned circuits. Enter the untuned field strength meter (FSM) a simple effective tool that every electronics enthusiast should have in their toolkit.
The Poor-Man’s Transmitter: Building a Simple AM Radio Beacon from Vintage Electronics
The Poor-Man’s Transmitter: Building a Simple AM Radio Beacon from Vintage Electronics, uses a clever arrangement of 4011 CMOS gates to create AM Radio Beacon
Building a Crystal-Controlled CMOS Oscillator: A Classic Circuit for Precise Timing
When you need accurate, stable frequency generation for digital circuits, few solutions are as elegant and cost-effective as a crystal-controlled CMOS oscillator. This classic circuit design demonstrates how a simple TV color crystal can be transformed into a versatile frequency source for various applications. At the heart of this circuit lies an inexpensive 3.58 MHz […]
NJM4558 Audio Compressor Circuit: Complete Schematic & Build Guide
The NJM4558 audio compressor represents one of the most reliable and widely-used integrated circuits in professional audio applications. Furthermore, this dual operational amplifier IC has become the cornerstone of countless audio compression circuits due to its exceptional performance characteristics and versatility. The NJM4558 audio compressor circuit shown in the schematic demonstrates a sophisticated approach to […]