Without getting into specifics, In the late '50s, Fender used several different output transformers in the Tweed Deluxe. One of those transformers had an unusual architecture and this resulted in a different sound; the best sound of them all. Deluxes with this output transformer exhibited less bass response, more midrange and very smooth overdrive characteristics.

Rondo and the Speed Shop have reversed-engineered and recreated the transformer in question and it is now included as an upgrade option on all Speed Shop Deluxe amplifiers.

The TD58OT is standard on 5E3-P2P amplifiers.

Please note: the TD58OT is not available individually as they are hand-wound in small quantities.

Lots of folks claim to make exact copies of vintage transformers, don't believe it. The TD58OT is the real thing.