freestompboxes.org

I've planned to build this thing for over a year, but couldn't find time. Finally, I had few weekends to dedicate and it's all done.

Output tubes are biased with LEDs, 6 white and two red, wired in two parallel arrays to make sure they can take the current.

I turned out exactly as I planned. It's super clean. There's a boosted and "all tube" input. Boosted can get handy when playing with guitar straight into the amp because without the boost it can get loud about as the TV. When using a preamp or hot pedals there's no need for the boost (unless you want to drive the output more) so unboosted input is fine.



You can find pics and schematic here http://diy-fever.com/amps/3w-tube-power ... db40434531

I'll try to record clips soon.

Cheers

I get the message "You do not have permission to preview drafts." when I click the link.

deltafred wrote:I get the message "You do not have permission to preview drafts." when I click the link.

same here!

Just use a shortened link:
http://diy-fever.com/amps/3w-tube-power-amp/

I'm an idiot, tnx KMG

Adding some clips. Everything's played clean, guitar into boosted input. I'll record some with pedals in front.

Mini Les Paul -> Nan@ Amp (boosted) -> 1x10" cab -> GLS ES-57 mic -> Tascam DP-008

http://diy-fever.com/wordpress/wp-conte ... od_mic.mp3
http://diy-fever.com/wordpress/wp-conte ... me_mic.mp3

Note that clips recorded with mic have more noise. It's not the guitar or the amp to blame. Since I played relatively quietly, I had to crank the heck out of the mic preamp which added some noise. The amp itself is super quiet.

Mini Les Paul -> Nan@ Amp (boosted) -> dummy load -> Palmer PDI-09 (bright) -> Tascam DP-008

http://diy-fever.com/wordpress/wp-conte ... direct.mp3

Sounds cool Bancika, kind of Fender-ish....

thanks! These days I prefer humbuckers even for clean sounds, they sound so much fuller than singles.