I have a 75 LP deluxe I just took this pup out of. When I bought the guitar, I was under the impression that the neck was a Gibson Humbucker (which it is, PAF like tones I've gathered) and the bridge was a Dirty Fingers pickup. After I got it I took it to my guitar tech at the time who stuck an ohm meter on the pups and declared the neck to be about 8K and the bridge to be about 15K, which was consistent with what I knew of the guitar. Today I pulled out the old pups and looked at the back of them. The neck is a pat. 2,737,842 which is supposedly similar to a PAF as I mentioned before. Recently the bridge pup suddenly lost all it's ballsiness and low end and output. The reading today was around 7K, instead of the afore measured 15K. I took the reading while it was in the guitar and still soldered in. Makes sense, I thought. Something's shorting one of the coils and making my bridge pup sound like butt. Or something. Pups don't just DIE do they? Lo and behold, when I took it out I found out the lead had been extended at one point. The reading I took after desoldering the pickup was 0. No reading, no flicker, nothing. I used the meter to see if there was a short some where in the lead/extension, but it seems fine. I then looked on the back...to my surprise I found "pat. 2,737,842" stamped on the back, just like the neck. *confused* Is this a catch all number for Gibson? But both coils have adjustable poles...which means it is a Dirty Fingers? Now I am confued as heck as to what this pup is and what's going on with it! The ink looks like it says "422 1 8 " when I tweaked it in photoshop but the last numbers are smudged.