Duncan Trembucker, year introduced?

[SQUAREHEAD]

What year did these come out? I think it was around 1990 but I'm not positive , I'm almost certain that I bought a TB4 in mid 1990…

 

[nigelpkay]

This doesn't help much, but when I asked Dimarzio support when their F-spaced pickups were introduced, it was 1988.

 

[SQUAREHEAD]

This doesn't help much, but when I asked Dimarzio support when their F-spaced pickups were introduced, it was 1988.

Yep! I bet it's right around there…