Gibson 490r magnet swap to T-Top type

[Cdwillis]

SG standards and Les Paul Studios used to have a 490r and 498t set in them at one time. The 490r being alnico 2 and 498t being alnico 5. People would swap the magnets so the A5 was in the 490r to clean it up and the 498t got the alnico 2 to make it a little smoother/fatter and match the pickups EQ a little better.

According to Sweetwater the LP Studio still has the 490r/498t set, but currently the SG standards have 490r and 490t pickups, as do the Les Paul Tributes. It was already pointed out, but the 490t is wider f-spaced/trembucker type bobbins, wound a little more than the 490r, and with the same alnico 2 magnet.

Even with the 490r set deep down about even with the pickup ring and the 490t raised up pretty close to the strings, the neck pickup overpowered the bridge a little in my LP Tribute.

 

[beaubrummels]

FWIW if the same number of winds are on a trem-spaced bobbin, the DCR will be higher, but not the output. Is it known there are actually more winds by turn count on the 490T? Or is it just higher DCR because it's trem-spaced?

 

[AlexR]

All the 490R's I have had read at just below 8k......nowhere near the 7.5k they are saying.
I think I remember some data many years back that had the turn count as identical between them, and that same source had the K readings as 7.9 and 8.1 for the R and T respectively.

 

[Cdwillis]

My 490r is measuring 7.71k and the 490t at 8.03k.