This beautiful amp appears to be all original with the exception of a 3-prong power cord added for safety. The condition is amazing as seen from the photos.

All 3 mic channels work great and are clean sounding to about 50% volume. Then a nice overdrive begins. Very little hum or noise. It can get quite loud, likely because the controls don’t go to 10, they go to 100 😊

Tubes test great and are all labeled Stromberg Carlson with the exception of 5U64 rectifier which is a Dumont.

Tubes:

6SJ7 x 3

6SF5 x 1

6N7 x 1

6L6G x 2

5U4G x 1

An 8 ohm (easily change to 4 or 16) speaker jack has been carefully added. A ¼” phone jack adapter is included to plug in a guitar or harp mic. A reprint of the original schematic and parts list will also be sent.

Please check my shop TinkerTech at https://reverb.com/shop/charless-gear-depot-1636 for other great items. Thanks!

This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.

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Listed7 months ago
ConditionVery Good (Used)
Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more
Brand
Model
  • AU33
Finish
  • Metal
Categories
Year
  • 1950s
Made In
  • United States

Product safety information may be available here.

TinkerTech

Bradenton, FL, United States
Joined Reverb:2025

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