 Around 1970, Gibson replaced the P-90 on several models with a mini side-by-side humbucker now known as the mini-humbucker.This pickup was originally used on Epiphone models such as the Sheraton and with suitable mounting hardware became interchangeable with the P-90.In response to a resurgence of popularity of the P-90 Gibson issued the P-100, a stacked version (see above) of the P-90.