Up for sale is a genuine ClassicTone 40-18090 power transformer manufactured by Magnetic Components, Inc. in Chicago, USA. ClassicTone transformers are no longer in production and have become increasingly desirable among amp builders, restorers, and collectors seeking high-quality American-made iron.
This transformer was purchased new, tested to verify proper operation, and then never installed or put into service. It has remained in storage since testing and retains its original factory lead condition, including the factory-tinned wire ends. No leads have been cut, shortened, or modified.
Condition:
- Tested and confirmed functional
- Never installed in an amplifier
- Never used in service
- Original factory-tinned leads intact and full length
- Excellent cosmetic condition with only minor handling/storage marks, if any
- Please review all photos carefully for details.
Specifications:
- Manufacturer: ClassicTone / Magnetic Components, Inc.
- Model: 40-18090
- Made in USA
- Discontinued and increasingly difficult to find
- Ideal for amplifier restoration, repair, or custom builds requiring original ClassicTone quality
Included:
- (1) ClassicTone 40-18090 Power Transformer exactly as pictured
ClassicTone transformers earned an outstanding reputation for tone, reliability, and craftsmanship. With production discontinued, unused examples in this condition are becoming harder to source.
Please feel free to contact me with any questions or if you would like additional photos or measurements before purchasing.
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.
| Listed | 7 days ago |
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| Condition | Very Good (Used) Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more |
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Product safety information may be available here.

