Welcome, you are looking at a great piece.
This is the Seymour Duncan TB-16 59 Custom Hybrid Trembucker.
Wiring: 4-Conductor Magnet: Alnico 5. DC Resistance: 11.7k Ohm.
The Seymour Duncan TB-16 59 Custom Hybrid Trembucker is a harmonically rich pickup that uses one coil from the 59 Model and one coil from the higher output Duncan Custom model.
The 59 Custom Hybrid is a medium output, gritty sounding pickups that sparkles with upper midrange harmonic content. The mismatched coils, and the Alnico 5 bar magnet, keep the low end tight and give the treble a bite similar to a mini-humbucker.
When split, you get the 7k coil for a much more usable single coil sound.
Trembuckers have wider pole piece spacing, perfect for symmetrical positioning under the strings of guitars with a tremolo bridge.
Other features include nickel silver bottom plate, 4-conductor lead wire for multiple wiring options, and vacuum wax potting for squeal free performance.
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