3W tube power amp (my design)

Tube or solid-state, this section goes to eleven!
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bancika
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Post by bancika »

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.

Image

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

I'll try to record clips soon.

Cheers
The new version of DIY Layout Creator is out, check it out - https://github.com/bancika/diy-layout-creator
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deltafred
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Post by deltafred »

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

deltafred wrote:I get the message "You do not have permission to preview drafts." when I click the link.
same here!
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KMG
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Post by KMG »

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

I'm an idiot, tnx KMG :slap:
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bancika
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Post by bancika »

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
The new version of DIY Layout Creator is out, check it out - https://github.com/bancika/diy-layout-creator
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DrNomis
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Post by DrNomis »

Sounds cool Bancika, kind of Fender-ish.... :thumbsup
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bancika
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Post by bancika »

thanks! These days I prefer humbuckers even for clean sounds, they sound so much fuller than singles.
The new version of DIY Layout Creator is out, check it out - https://github.com/bancika/diy-layout-creator
Check out my site with DIY gutars, amps and pedals http://diy-fever.com
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