HA-5000

3 года назад

The video demonstrates how to adjust the quiescent current on a headphone amplifier. The creator discovered that the amplifier they purchased had a low quiescent current, resulting in poor sound quality. They then show how to adjust the current using a multimeter and trimmer resistors, explaining the process step-by-step.

2 года назад

This video documents the process of fixing a headphone amplifier purchased from AliExpress. The creator encountered several issues, including counterfeit transistors and a low-frequency background noise. They share their troubleshooting steps and solutions, including replacing components and adjusting settings.