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Removing the complementary output transistor from an amplifier and substituting in random transistors to see what occurs.

Get this amplifier working on a spare part until I can get the correct part for it. Patreon https://www.patreon.com/user?u=12254451 ...

Although I've found Fnirsi test gear to reasonable for the budget price, this time there is a serious flaw that needs to be addressed ...

Converting my passive subwoofer to active. Patreon https://www.patreon.com/user?u=12254451 Email: ...

Someone wants to know if the JAT501 amplifier can be operated in class A with a 2 Ohm load at +/- 12 volt supply. Plus, I check ...

Let's see how this new speaker works out. Yeah, I keep mispronouncing the name of this company :) https://www.aiyima.com/ ...

Douk Audio sent me this amplifier to review. Let's see what it can do. Patreon https://www.patreon.com/user?u=12254451 ...

Sealed vs. ported speakers and how I go about selecting a good bass driver. I often say "speaker" in the video when I mean ...

I wanted to try building a compact subwoofer using acrylic (plexiglass). Patreon https://www.patreon.com/user?u=12254451 ...

No output. Make working again. Patreon https://www.patreon.com/user?u=12254451 Email: johnaudiotech@gmail.com Thank ...

s the vintage audio market overheated? Absolutely. With prices for Marantz, Sansui, and Pioneer skyrocketing, it's time to look at ...

MTejnTqC6497 • Audio Technica AT-OC9XEN MC Cart: https://amzn.to/3C0PCna Accessories/Cables: • IsoAcoustics Gaia Series ...

This episode brought to you by Bowers & Wilkins and Roon https://bit.ly/4ggz8X0 https://roon.app/en/ Camera: John ...

Are the best amplifiers already 50 years old? Or has modern engineering finally surpassed the golden era of Hi-Fi? In this ultimate ...

AmpDyno #Amplifier #VUmeters Ampapa D1 Mini Stereo Bluetooth TPA3255 Amplifier Update Video on this Amp: ...

Learn more about getting bass in a small enclosure here: https://youtu.be/-s78YDDwB0I For this video I designed three sealed ...

Today we take a first look at Audio Coupling Capacitors, what they are, what they do and why they're so important for quality audio ...

Another solder together kit that cost $8 shipped. Can this much power for so little money be any good? Watch and find out.

Low voltage tube / valve preamp with gain about 20db. Schematic and music samples included after description. YouTube's audio ...

This video simplifies the design of a small signal common emitter transistor amplifier that uses a voltage divider bias circuit on the ...