Opamp based audio amplifier - better output power JohnAudioTech

10.2K views - 4 years ago

Junction Field Effect Transistor (JFET) introduction and characteristics PT1 JohnAudioTech

24K views - 3 years ago

DIY stereo preamplifier design & build JohnAudioTech

85.5K views - 9 years ago

The unbiased audio amplifier output stage JohnAudioTech

44.8K views - 7 years ago

Phono preamp review - Fosi Audio BOX X5 JohnAudioTech

17.3K views - 1 year ago

Pushing the UTC TDA2050L to the limits = unhappiness JohnAudioTech

4.7K views - 3 weeks ago

Trying random output transistors in an amplifier to see what happens JohnAudioTech

8.5K views - 3 months ago

Steve Wolfinbarger Trombone Retreat

24 views - 1 year ago

Oscillating amplifier - Tips to fix JohnAudioTech

7.1K views - 1 year ago

TDA7293 100 watt audio amplifier kit test and review JohnAudioTech

137.8K views - 8 years ago

Fosi Audio P3 Pre Amplifier Review & Analysis | by @JohnAudioTech Fosi Audio

5.1K views - 2 years ago

TDA2050 vs LM1875 on the QA403 audio analyzer JohnAudioTech

16.8K views - 1 year ago

Nick Schwartz Trombone Retreat

81 views - 1 year ago

Changes in my life - the reasons I've been gone JohnAudioTech

6.2K views - 2 years ago

Aiyima S4000 powered speaker review JohnAudioTech

3.2K views - 1 month ago

uPC1238 audio amplifier IC tested on the analyzer JohnAudioTech

2.9K views - 1 month ago

Super barrier rectifier diode test JohnAudioTech

2.9K views - 4 weeks ago

100 watt subwoofer board test and review, Arylic brand JohnAudioTech

8.6K views - 4 years ago

The BEST low cost audio amplifier boards I've tested JohnAudioTech

161.5K views - 8 years ago

LM1875 audio amplifier kit assembled far from home JohnAudioTech

5.7K views - 4 years ago