Audible Continuity Tester for for Electronics Testing

audio Circuits DIY

This audible continuity tester uses a simple oscillator IC to generate a tone when a…

audio Circuits DIY Tools

This simple sine wave oscillator uses a transistor-based phase-shift network to generate a clean periodic…

audio Circuits DIY Tools

This TL071 audio compressor circuit uses a single-supply design with a TL071 op-amp as a…

A Beginner's Guide to ATS20+ Firmware flashing Hey radio enthusiasts! Ever wondered if your beloved…

ATS-20 is a compact SI4732-based multiband DSP receiver covering FM, MW, SW, and SSB —…

This simple AM transmitter uses a crystal-controlled oscillator and transistor stages to generate and amplify…

audio Circuits DIY Tools

This microphone audio compressor uses an LM324 op-amp with multi-stage amplification, diode-based gain control, and…

LILYGO T-Embed SI4732 combines an ESP32-S3 microcontroller with a DSP multiband radio (AM/FM/SW/LW + SSB),…

This FT8 digital interface connects a computer to a transceiver using a USB sound card,…

This simple CW transmitter uses a 74HC240 buffer IC as both oscillator and driver to…