Simple 2-stage tube audio amplifier

After building the regenerative radio in my previous video, I rewired the 6GC7 tube as an audio amplifier. I offer this video as proof-of-concept that it worked, since this is my first vacuum tube audio amplifier.

There's not much else to say about it other than I chose to play "The Easy Winners" as the song.

Category:

Science & Technology

Tags:

• vacuum
• tube
• audio
• amplifier

[0redthunder0]

What did you use for an output transformer? I made a pretty badass valve amplifier XD I was so cheap... I went looking around my house for power transformers and found one with a 2k primary impedance! Thats perfect for the 12b4a that I'm using :P

[mrjimbopalmer]

I think I was using a random audio transformer that I had pulled out of an old ham radio some years ago. It works well enough.

[teendude16]

Did you create this, is it possible for me to create one too?. Thanks for posting.

[mrjimbopalmer]

Yes, I did create this. If you can get your hands on the electronics and you know a little bit of electronics, you too could build it. I scrounged the parts from old electronics. I'd just caution that you be careful around the power supply; the vacuum tube requires about 250 volts.

[0redthunder0]

Awesome! Have you got a simple schematic?

[notsuretwo]

What a cool project. Like going back in time.

[teflondon91]

kt-88 is a great choice, check my videos with a kt-88 powered amp.. they hit hard!

[teflondon91]

maybe just a hifi stereo speaker is in order?

[teflondon91]

good job with the circuit work but it sounds like crap man.... try and shoot for hifi next time, esp from a a cd player!

[mikeygeneral]

try using a kt88 or its equivanlent to see if this can be louder.kt88's and a very deadly strong tube.

i know a rastafarian man that build an audio amp from them and the bass made his hair straight. (Serios)

[teendude16]

Thank you, it's sounds good by the way, and I like that tune. Thanks.