Jester Oahu JU-28  (Tab-Funkenwerk)

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This 1999 Jester Oahu JU-28 boutique tube amp is in exceptional, near mint condition. After acquiring the Oahu name in the late '90s, Jester produced only 300 amplifiers total between 1998-2000, 30 of which were purchased by Keith Richards and used with the Stones.

Handbuilt in Seattle, Washington, Jester was the brainchild of Oliver Archut of "Tab Funkenwerk," and it's not often you see any of his amps offered for sale.
  • No rainforest woods or toxic adhesives are used
  • Aircraft aluminum chassic
  • Handwound transformers, in-house

From their 1998 dealer sales brochure:
"In with the old! The Oahu amp, first introduced 1940's, is available again! Faithfully reproduced one at a time, each amp is built right here in the USA!

In a time when digital amp simulators sound almost half as cool as the real, the Oahu amp will bring you back to the day when distortion was truly dangerous...

The Oahu JU-28 is an all-tube guitar amplifier with a simple, straight forward preamp, two channels with separate volume controls, a master tone control and 16.5 watts of class A output power into a 10" speaker. The upgraded power transformer is designed with a magnetic gap to get the "sag" if driven hard, without toasting. The output transformer is relocated on the 18 gauge powder coated aluminum chassis and connected to the speaker with a standard 1/4" jack. We also added an additional external speaker output and an adjustable line out.

All electronic components are located on a hard paper board with turret point-to-point wiring. The tubes sit tightly in ceramic sockets with silver plated contacts. The Russian made 12AX7s are covered by gold anodized tube shields and the EL84s are protected with tube retainers."

The JU-28 is a legendary studio amp, it's all gain, all the time. Rolling back your volume knob allows for some very glassy and articulate cleans, but for a dynamic roar and beautifully overdriven distortion, the JU-28 delivers. The Volume knob simply works as a "how much" control in terms of the thickness and power of the sound, and the Tone control has a nice sweep from mellow to twangy. This amp is efficient and loud. The power tubes are matched Sovtek EL84s and the circuit is voiced through the original 10" speaker.

Cosmetically, the JU-28 is nearly immaculate, with some extremely light patina on the gold anodized control panel. The textured white-black covering on the amp shows virtually no wear, and the "Oahu" silkscreening on the black grillcloth is perfect.

Rarer than rare and worthy of the cult following, this amp will never let you down. It's the reason Keith Richards uses it as his secret weapon. (Keep in mind there are two models the JU28 and the JU38 - Keith plays the smaller, JU28 exactly the same as the amp listed here)

I'm reluctant to sell this incredible amp, but I have a once in a lifetime opportunity to acquire my holy grail axe so I am listing some of my most prized gear. These never pop up, you really have to know someone to get one. This is your chance to join an exclusive club. 

Thanks for looking!

*Video taken 8/7/2017 plugged into a 4x10 extension cab.

Product Specs

Excellent (Used)
Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.learn more
Brand Jester Oahu
Model JU-28
Finish Grey Yacht
Categories Boutique Amps
Year 1999
Made In United States

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Available for local pickup from Naperville, IL, United States

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Return Window

This product can be returned within 2 days of receipt.

General Terms

Items must be returned in original, as-shipped condition with all original packaging and no signs of use. Buyer assumes responsibility for all return shipping costs unless the item was not received as described.


Buyer receives a full refund in their original payment method less any shipping costs and a 10% restocking fee.

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Returns are accepted within 48 hours of reception for a full refund minus shipping costs and a 10% restocking fee.

Sweet Pete's

Naperville, IL, United States
Joined: Dec 2014

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