Dumble ODS preamp with submini tubes

[jubal81]

Wife working from home started me on a silent rig quest that led me this and now I'm in headphone heaven.

It's a full Dumble ODS preamp with Russian 6n17b submini tubes in a 1590XX enclosure. I used grill cloth to cover the heat vent ports for the tubes.
Well-worn 555 SMPS with about 140V at the plates.

I added a high-voltage mosfet buffer on the output (Dumbleator style) and it even works really well as a boost/OD pedal into another tube amp. Mostly I run it into a delay > diy Surfy Bear reverb > Two Notes Cab M+.

[peAk]

Wow, thats beautiful

I absolutely love what you did with the grill cloth.

[harryklippton]

Yeah this is impressive!

[jimilee]

Oh hell yeah, I love it.


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[m-Kresol]

perfect. just perfect

[Stomptown]

Damn!  That is awesome!!!

[gordo]

That looks superb.

[matmosphere]

Amazing, if it sounds half as good as it looks then I'm sure it is headphone heaven.

[dan.schumaker]

That looks awesome!  After working on amps (including building some Dumble amps), its amazing how few components are needed to sound good, compared to some pedals.

[Thewintersoldier]

This is so impressive on so many different levels, would love to hear it. Great work!

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[mjg]

Wow, that is very impressive.

[cooder]

Super wicked Jason! Very cool!

[PapaKev]

Very nice. Looks great.

[Willybomb]

Put me down for a pcb if you ever decide to sell them!

[alanp]

That is a sexy piece of kit.