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LJ Schematics

by Ampin AudioOctober 29, 2026

Taming the Hum: Building an Audio Earth Loop Breaker

by Ampin AudioApril 10, 2026

We’ve all been there. You plug in your amplifier, connect your source, and there it is—a low-frequency 50Hz or 60Hz hum that just won'...Read More

Stop Handwriting Addresses: A Free Shipping Label Generator for Small Businesses

by Ampin AudioApril 07, 2026

For many small business owners and home-based entrepreneurs, the "shipping phase" of an order often involves a stack of packages ...Read More

The LJ204: A Love Letter to the 1980s DIY Audio Scene

by Ampin AudioApril 06, 2026

If you close your eyes and think of the "golden era" of home audio, you probably hear a sound that is warm, punchy, and unashamed...Read More

Wiring diagram for Ampin Jean Hiraga class A amplifier kit

by Ampin AudioApril 02, 2026

This wiring guide is designed for the Jean Hiraga Class A Amplifier Kit. Whether you are planning your build or have the components on your ...Read More

Building a 68W Hi-Fi Audio Amplifier with LM3886

by Ampin AudioMarch 22, 2026

If you’re into DIY audio, few chips are as legendary as the LM3886 . Known for its simplicity, reliability, and exceptional sound quality, ...Read More

Jean Hiraga Class A amplifier

by Ampin AudioAugust 12, 2025

The Jean Hiraga “Super Class A” is a discrete, pure Class A amplifier circuit renowned for its sonic refinement and minimalist engineering. ...Read More

LJ Schematics

Taming the Hum: Building an Audio Earth Loop Breaker

Stop Handwriting Addresses: A Free Shipping Label Generator for Small Businesses

The LJ204: A Love Letter to the 1980s DIY Audio Scene

Wiring diagram for Ampin Jean Hiraga class A amplifier kit

Building a 68W Hi-Fi Audio Amplifier with LM3886

Jean Hiraga Class A amplifier

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