Rare T.W. Doyle D-1 Pickup System with Complete Original Wiring Harness

Rare T.W. Doyle D-1 Pickup System with Complete Original Wiring Harness – Fully Functional

Up for sale is a rare and highly unique T.W. Doyle D-1 System, complete with the original pre-wired harness including rotary switch, mini toggle, pots, and output jack. This is not just a set of pickups, but a full modular tone system designed for expanded tonal flexibility beyond traditional humbucker wiring.

This set was carefully removed from a 335-style guitar where it was fully installed and working perfectly. The pickups were de-soldered from the harness for removal and have since been reconnected exactly as they were originally wired. The entire system is complete, intact, and fully functional.

As referenced in original period advertising, the D-1 System was designed to offer up to 36 different tonal variations from a single pickup system, utilizing a combination of matched humbuckers, rotary sound selector, and additional switching. These systems were built to deliver a wide range of usable tones with exceptional clarity, output, and flexibility.

These pickups have been found in high-end boutique instruments, including D’Aquisto guitars, and are part of an earlier system associated with Tom Doyle, who was Les Paul’s longtime luthier, collaborator, and guitar tech. Unlike later Doyle Coils, this setup reflects an experimental approach focused on achieving maximum clarity, articulation, and a more hi-fi, full-range response.

The multi-position rotary switch allows for multiple tonal voices, likely achieved through different capacitor and resistor networks, while the mini toggle provides an additional tonal option for even greater flexibility.

The pickups deliver excellent note separation and clarity, making them ideal for players looking for a more articulate and detailed humbucker tone.

Condition is very good overall, with all components included as shown. A very cool and uncommon piece that does not come up often, especially as a complete and fully functional D-1 System.

Please review all photos carefully for the condition of the item. Feel free to reach out with any questions or requests for additional photos—I’m happy to help! This item is sold as described and will be professionally packed and shipped using Reverb Safe Shipping for your peace of mind. Thank you for considering this listing!