Pickup DCR's over the years?

[Artie]

Alex1fly's thread on making a hybrid got me thinking about this. He was going to do a 59/Jazz neck hybrid, and I wondered how different the two coils actually were. They're both A5 mags. So I looked at my old Duncan chart. The old DCR's are quite different from the new. The JAZZn and 59n are actually flipped, in terms of which is hotter. This seems more than just measuring variances. I only noted the Jazz and 59 values, (in green). I wonder how many others differ.

 

[Artie]

That's not showing up very clearly. Let's try this.

 

[beaubrummels]

Where did that chart come from? It doesn't look right. Bridge and neck are mislabeled for a start, and the values look off on a number of them. It looks like a chart of someone's personal measurements, not a spec sheet.

 

[Artie]

It's the official Duncan PDF that they offered on the "resource" section of the website years ago. I have the exact same chart in a big fold-out chart that came with the "Duncan Pak" from long ago. It included the chart, three CD's, and a keyring.

I can send you the PDF if you'd like. I don't think I can post a PDF in the forum.

Nope. Doesn't work. It's too large. (About 293k. They only allow 100k.)

 

[Artie]

Bridge and neck are mislabeled for a start

Keep in mind, I "shopped" the chart to fit the green numbers in. The actual chart lines up with the neck bridge values.

 

[jeremy]

id love to see the pdf artie.

not sure why the discrepancy, but there are a lot of differences. some pretty small

 

[akio]

The biggest discrepancy I see there on your chart there is about 6% on the Jazz bridge (the rest are in the 2% range), and that could be a multitude of things: wire batch inconsistencies, different meter used to measure years later, temperature as usual.

 

[beaubrummels]

^ +1

Seems like a tolerance issue, not a change in pickup recipe.

 

[freefrog]

For the record, I've faced rather noticeable differences of DCR with Duncan pickups of the "same" models but of different eras... I've here on the shelf a PG1N measuring 6.9k, for instance.

And FWIW, I wouldn't put much meaning in DCR: a same number of turns on similar bobbins can give really variable final resistance from one spool of wire to the other and/or if winding tension has been set differently, for example.

Anyway: let's try to share in a "text only" version the "Duncan Tone Chart" from the past (1996-2006, as mentioned at the end of the list). It won't be easily readable but it's textually what the Duncan website was displaying publically a few decades ago...


Tone Chart Key: High Output Players' Pick Single Coil
Moderate Output Pro Shop Hum-Cancelling

Seymour Duncan Humbuckers & Trembuckers
Model Name (click for details) Cable DC Resistance Resonant Peak Magnet EQ
B/M/T Output User Type
APH-1
Alnico II Pro
Four Con. Neck : 7.6 k
Bridge : 7.85 k Neck : 7.1 KHz
Bridge : 6.7 KHz Alnico II Bar 7 / 4 / 8 Compare Tone

SH-55
Seth Lover Model
1-Con Braid Shield Neck : 7.2 k
Bridge : 8.1 k Neck : 8.14 KHz
Bridge : 5.9 KHz Alnico II Bar 6 / 4 / 8 Compare Tone

SHPG-1
Pearly Gates
Four Con. Neck : 7.3 k
Bridge : 8.35 k Neck : 7.5 KHz
Bridge : 6.5 KHz Alnico II Bar 6 / 5 / 9 Compare Tone

SH-1
59 Model
1-Con Braid Shield Neck : 7.43 k
Bridge : 8.13 k Neck : 6.8 KHz
Bridge : 6 KHz Alnico V Bar 6 / 3 / 8 Compare Tone

SH-3
Stag Mag
Four Con. Bridge : 16.2 k Bridge : 6.5 KHz Alnico II Rods 4 / 3 / 6 Compare Tone

SH-2
Jazz Model
Four Con. Neck : 7.72 k
Bridge : 7.9 k Neck : 8 KHz
Bridge : 7 KHz Alnico V Bar 5 / 3 / 9 Compare Tone

SH-10
Full Shred
Four Con. Neck : 7.4 k
Bridge : 14.6 k Neck : 8 KHz
Bridge : 5.5 KHz Alnico V Bar 4 / 4 / 8 Compare Tone

SH-12
George Lynch Screamin' Demon
Four Con. Bridge : 10 k Bridge : 7 KHz Alnico V Bar 5 / 4 / 9 Compare Tone

SH-13
Dimebucker
Four Con. Bridge : 16.25 k Bridge : 5.1 KHz Ceramic Bar 6 / 5 / 8 Compare Tone

SH-14
Custom Five
Four Con. Bridge : 14.4 k Bridge : 5.4 KHz Alnico V Bar 6 / 3 / 8 Compare Tone

SH-4
JB Model
Four Con. Bridge : 16.4 k Bridge : 5.5 KHz Alnico V Bar 5 / 6 / 8 Compare Tone

SH-5
Duncan Custom
Four Con. Bridge : 14.1 k Bridge : 6 KHz Ceramic Bar 7 / 6 / 9 Compare Tone

SH-6
Duncan Distortion
Four Con. Neck : 12.7 k
Bridge : 16.6 k Neck : 6.5 KHz
Bridge : 5.5 KHz Ceramic Bar 5 / 8 / 9 Compare Tone

SH-8
Invader
Four Con. Neck : 7.2 k
Bridge : 16.8 k Neck : 8 KHz
Bridge : 5 KHz Ceramic Bar 7 / 8 / 4 Compare Tone

SH-11
Custom Custom
Four Con. Bridge : 14.4 k Bridge : 5.2 KHz Alnico II Bar 3 / 7 / 7 Compare Tone

PATB-1
Original Parallel Axis
Four Con. Neck : 7.5 k
Bridge : 15.7 k Neck : 6.9 KHz
Bridge : 4.5 KHz Alnico V Bar 5 / 4 / 7 Compare Tone

PATB-2
Distortion Parallel Axis
Four Con. Bridge : 21.3 k Bridge : 3.9 KHz Ceramic Bar 5 / 6 / 7 Compare Tone

PATB-3
Blues Saraceno Parallel Axis Model
Four Con. Bridge : 9.8 k Bridge : 6 KHz Alnico V Bar 6 / 3 / 6 Compare Tone

PA-STK1N
Parallel Axis Single Coil Stack
Four Con. Neck : 6.8 k Neck : 6.4 KHz Ceramic Bar 5 / 2 / 9 Compare Tone

LW-CH1
Livewire Classic Humbucker
Two Con. Shielded N/A Neck : 10.5 KHz
Bridge : 7.5 KHz Alnico II Bar 5 / 4 / 9 Compare Tone

LW-HMET
Livewire Metal Humbucker
Two Con. Shielded N/A Bridge : 1.2 KHz Alnico V Bar 7 / 9 / 5 Compare Tone

Seymour Duncan P-90 Soapbars
Model Name (click for details) Cable DC Resistance Resonant Peak Magnet EQ
B/M/T Output User Type
SP90-1
Vintage P-90 Soapbar
Single Con. Neck : 8.22 k
Bridge : 9.35 k Neck : 4.3 KHz
Bridge : 3.8 KHz Alnico V Bar 5 / 5 / 7 Compare Tone

SP90-2
Hot P-90 Soapbar
Single Con. Neck : 11.86 k
Bridge : 14.9 k Neck : 5.1 KHz
Bridge : 4.7 KHz Small Ceramic 6 / 6 / 5 Compare Tone

SP90-3
Custom P-90 Soapbar
Single Con. Neck : 12 k
Bridge : 14.61 k Neck : 4.5 KHz
Bridge : 3.5 KHz Large Ceramic 6 / 5 / 6 Compare Tone

STK-P1
P-90 Stack
Four Con. Neck : 10.68 k
Bridge : 15.84 k Neck : 3.1 KHz
Bridge : 3 KHz Alnico V Bar 5 / 6 / 6 Compare Tone

SPH90-1
Phat Cat
Single Con. Neck : 7.98 k
Bridge : 8.49 k Neck : 6.3 KHz
Bridge : 6.05 KHz Alnico II Bar 6 / 5 / 7 Compare Tone

Seymour Duncan Pickups for Strat True Single Coils
Model Name (click for details) Cable DC Resistance Resonant Peak Magnet EQ
B/M/T Output User Type
APS-1
Alnico II Pro Staggered
Single Con. Cloth 6.4 k 9 KHz Alnico II Rods 5 / 4 / 7 Compare Tone

APS-2
Alnico II Pro Flat
Single Con. Cloth 6.4 k 9 KHz Alnico II Rods 5 / 4 / 7 Compare Tone

SSL-1
Vintage Staggered
Single Con. Cloth 6.5 k 10 KHz Alnico V Rods 5 / 3 / 9 Compare Tone

SSL-2
Vintage Flat
Single Con. Cloth 6.6 k 9 KHz Alnico V Rods 5 / 3 / 9 Compare Tone

SSL-3
Hot
Single Con. PVC Tapped : 8.8 k
Full : 16.4 k Tapped : 5.3 KHz
Full : 4.4 KHz Alnico V Rods 4 / 7 / 5 Compare Tone

SSL-4
Quarter-Pound Flat
Single Con. PVC Tapped : 6.9 k
Full : 13.3 k Tapped : 5.5 KHz
Full : 4.8 KHz .25" Alnico V Rods 5 / 4 / 6 Compare Tone

SSL-7
Quarter-Pound Staggered
Single Con. PVC Tapped : 7 k
Full : 14.8 k Tapped : 5.5 KHz
Full : 4.8 KHz .25" Alnico V Rods 5 / 4 / 6 Compare Tone

SSL-6
Custom Flat
Single Con. PVC 13 k Tapped : 6 KHz
Full : 4.9 KHz Alnico V Rods 5 / 4 / 7 Compare Tone

SSL-5
Custom Staggered
Single Con. PVC Tapped : 6.6
Full : 12.9 Tapped : 6
Full : 4.9 Alnico V Rods 5 / 4 / 7 Compare Tone

SSL52-1
Five-Two
Single Con. Cloth 6.7 k 8.2 KHz Alnico II & V Rods 5 / 5 / 6 Compare Tone

SSL52-1b
Five-Two Custom Bridge
Single Con. Cloth 6.9 k 7.9 KHz Alnico II & V Rods 5 / 5 / 6 Compare Tone

SLS-1
Lipstick Tube for Strat
Two Con. Shielded 4.3 k 9.4 KHz Alnico V Bar 6 / 4 / 8 Compare Tone

APST-1
Twang Banger
Single Con. Cloth 8.27 k 5.6 KHz Alnico II Rods 5 / 5 / 7 Compare Tone

Seymour Duncan Pickups for Strat Single Coil-Sized Humbuckers **In parallel †middle 9.75KOhms/5.45KHz
Model Name (click for details) Cable DC Resistance Resonant Peak Magnet EQ
B/M/T Output User Type
SHR-1
Hot Rails
Four Con. Neck : 10.8 k
Bridge : 16.9 k Neck : 4.8 KHz
Bridge : 3.5 KHz Ceramic Bar 5 / 7 / 4 Compare Tone

SCR-1
Cool Rails
Four Con. Neck : 9.4 k
Bridge : 10.3 k Neck : 5.2 KHz
Bridge : 4 KHz Ceramic Bar 5 / 4 / 5 Compare Tone

SVR-1
Vintage Rails
Four Con. Neck : ** 2.31 k
Bridge : ** 2.67 k Neck : 8.5 KHz
Bridge : 7.8 KHz Ceramic Bar 6 / 3 / 9 Compare Tone

SDBR-1
Duckbuckers
Four Con. Neck : ** 2.6 k
Bridge : ** 3 k Neck : 7.2 KHz
Bridge : 6.8 KHz Ceramic Bar 5 / 3 / 9 Compare Tone

SJBJ-1
JB Jr.
Four Con. Neck : 9.6 k
Bridge : 16.09 k Neck : 5 KHz
Bridge : 3.6 KHz Ceramic Bar 4 / 6 / 5 Compare Tone

SLSD-1
Li'l Screamin' Demon
Four Con. Neck : 9.72 k
Bridge : 13.35 k Neck : 4.6 KHz
Bridge : 4.5 KHz Ceramic Bar 6 / 4 / 6 Compare Tone

SL59-1
Little '59
Four Con. Neck : 9.86 k
Bridge : 11.78 k Neck : 5.8 KHz
Bridge : 4.6 KHz Ceramic Bar 6 / 5 / 7 Compare Tone

STK-S4
Stack Plus
3-Con Shielded Neck : † 9.62 k
Bridge : † 10.36 k Neck : 5.7 KHz
Bridge : 5.2 KHz Alnico V Rods 5 / 4 / 8 Compare Tone

STK-S2
Hot Stack
Four Con. Neck : 13.2 k
Bridge : 20.6 k Neck : 6.5 KHz
Bridge : 6 KHz Ceramic Bar 4 / 5 / 6 Compare Tone

LW-CS1
Livewire Classic
Two Con. Shielded N/A Neck : 8.5 KHz
Bridge : 8.5 KHz Alnico II Rods 7 / 2 / 9 Compare Tone

LW-HS1
Livewire Hot
Two Con. Shielded N/A Neck : 8.5 KHz
Bridge : 8.5 KHz Alnico II Rods 5 / 8 / 6 Compare Tone

Seymour Duncan Pickups for Tele *Each coil
Model Name (click for details) Cable DC Resistance Resonant Peak Magnet EQ
B/M/T Output User Type
STL-1B
Vintage for Broadcaster Lead
Single Con. Cloth 7.6 k 8.5 KHz Alnico V Rods 3 / 7 / 8 Compare Tone

STL-1
Vintage '54 Lead
Single Con. Cloth 7.2 k 9 KHz Alnico V Rods 3 / 6 / 9 Compare Tone

STR-1
Vintage Rhythm
Single Con. Cloth 7.3 k 8 KHz Alnico V Rods 5 / 3 / 4 Compare Tone

STL-2
Hot Lead
Single Con. PVC Tapped : 7.4 k
Full : 15.6 k Tapped : 8.2 KHz
Full : 5 KHz Alnico V Rods 5 / 6 / 5 Compare Tone

STR-2
Hot Rhythm
Single Con. PVC 9.7 k 8 KHz Alnico V Rods 6 / 4 / 5 Compare Tone

STL-3
Quarter-Pound Lead
Single Con. PVC Tapped : 8 k
Full : 17.38 k Tapped : 6.1 KHz
Full : 3.5 KHz .25" Alnico V Rods 7 / 5 / 7 Compare Tone

STR-3
Quarter-Pound Rhythm
Single Con. PVC Tapped : 6.6 k
Full : 11.8 k Tapped : 8.3 KHz
Full : 6 KHz Alnico V Rods 8 / 5 / 5 Compare Tone

APTL-1
Alnico II Pro Lead
Single Con. Cloth 6.2 k 8.5 KHz Alnico II Rods 5 / 2 / 5 Compare Tone

APTR-1
Alnico II Pro Rhythm
Single Con. Cloth 8.1 k 8 KHz Alnico II Rods 6 / 3 / 4 Compare Tone

APTL-3JD
Jerry Donahue Model Lead
Single Con. Cloth 7.8 k 6.63 KHz Alnico II Rods 5 / 5 / 7 Compare Tone

STL52-1
Five-Two Lead
Single Con. Cloth 7.5 k 5.7 KHz Alnico II & V Rods 5 / 4 / 7 Compare Tone

STR52-1
Five-Two Rhythm
Single Con. Cloth 7.9 k 10 KHz Alnico II & V Rods 6 / 4 / 4 Compare Tone

STK-T1N
Vintage Stack Rhythm
Four Con. Split : * 7.9 k
Full : 15.88 k 7.3 KHz Alnico V Rods 6 / 4 / 6 Compare Tone

STK-T3B
Vintage Stack Lead
Four Con. Split : * 9 k
Full : 18 k 7.5 KHz Alnico V Rods 6 / 4 / 4 Compare Tone

STK-T2B
Hot Stack
Four Con. Split : * 10.7 k
Full : 21.4 k 6 KHz Alnico V Bar 5 / 6 / 6 Compare Tone

ST59-1B
Little '59
Four Con. 17 k 3.4 KHz Ceramic Bar 6 / 6 / 5 Compare Tone

STHR-1B
Hot Rails
Four Con. 14.8 k 2.5 KHz Ceramic Bar 5 / 9 / 4 Compare Tone

Seymour Duncan Pickups for Jaguar, Jazzmaster & Danolectro
Model Name (click for details) Cable DC Resistance Resonant Peak Magnet EQ
B/M/T Output User Type
SJAG-1
Vintage for Jaguar
Single Con. Cloth Neck : 6.5 k
Bridge : 6.8 k Neck : 10.2 KHz
Bridge : 10 KHz Alnico V Rods 5 / 3 / 9 Compare Tone

SJAG-2
Hot for Jaguar
Single Con. PVC Neck : 11.5 k
Bridge : 12.31 k Neck : 5.1 KHz
Bridge : 4.5 KHz Alnico V Rods 7 / 6 / 6 Compare Tone

SJAG-3
Quarter-Pound for Jaguar
Single Con. PVC Neck : 11.74 k
Bridge : 13.96 k Neck : 4.8 KHz
Bridge : 4 KHz .25" Alnico V Rods 8 / 5 / 7 Compare Tone

SJM-1
Vintage for Jazzmaster
Single Con. Cloth Neck : 7.75 k
Bridge : 8.4 k Neck : 9 KHz
Bridge : 8.81 KHz Alnico V Rods 4 / 6 / 6 Compare Tone

SJM-2
Hot for Jazzmaster
Single Con. PVC Neck : 10.95 k
Bridge : 14.11 k Neck : 6.5 KHz
Bridge : 5.21 KHz Alnico V Rods 8 / 4 / 5 Compare Tone

SJM-3
Quarter-Pound for Jazzmaster
Single Con. PVC Neck : 11.85 k
Bridge : 12.97 k Neck : 5.2 KHz
Bridge : 5 KHz .25" Alnico V Rods 9 / 5 / 6 Compare Tone

SLD-1
Lipstick Tube for Danolectro
Two Con. Shielded Bridge : 4.3 k Bridge : 9.4 KHz Alnico VI Bar 6 / 4 / 8 Compare Tone

Basslines Active & Passive Soapbars
Model Name (click for details) Cable DC Resistance Resonant Peak Magnet EQ
B/M/T Output User Type
5-String Phase I / 6-String Phase II
ASB-5, -6
Two Con. N/A Neck : 7 KHz
Bridge : 6.8 KHz Ceramic Bar 8 / 4 / 7 Compare Tone

5-String Phase II / 6-String Phase II
ASB2-5, -6
Two Con. N/A Neck : 6.5 KHz
Bridge : 5.5 KHz Ceramic Bar 8 / 4 / 7 Compare Tone

SSB-4, -5
Passive Soapbars
Two Con. Neck : 6.3 k
Bridge : 7.3 k Neck : 9.2 KHz
Bridge : 8.1 KHz Ceramic Bar 6 / 4 / 7 Compare Tone

Basslines Active Pickups for 4-String Jazz Bass & P-Bass
Model Name (click for details) Cable DC Resistance Resonant Peak Magnet EQ
B/M/T Output User Type
APB-2
Lightnin' Rods for P-Bass
Two Con. N/A Neck : 6.8 KHz Alnico V Rods 6 / 4 / 7 Compare Tone

AJJ-2
Lightnin' Rods for Jazz Bass
Two Con. N/A Neck : 6.8 KHz
Bridge : 5.03 KHz Alnico V Rods 6 / 4 / 7 Compare Tone

APB-1
Pro-Active for P-Bass
Two Con. N/A Neck : 4.22 KHz Ceramic Bar 6 / 4 / 9 Compare Tone

AJJ-1
Pro-Active for Jazz Bass
Two Con. N/A Neck : 4.22 KHz
Bridge : 3.2 KHz Ceramic Bar 7 / 4 / 9 Compare Tone

Basslines Passive Pickups for 4-String Jazz Bass
Model Name (click for details) Cable DC Resistance Resonant Peak Magnet EQ
B/M/T Output User Type
SJB-1
Vintage
Single Con. Cloth Neck : 9.2 k
Bridge : 9.5 k Neck : 5.1 KHz
Bridge : 4.9 KHz Alnico V Rods 6 / 4 / 6 Compare Tone

SJB-2
Hot
Single Con. PVC Neck : 15.02 k
Bridge : 16.6 k Neck : 4.5 KHz
Bridge : 3.8 KHz Alnico V Rods 4 / 6 / 4 Compare Tone

SJB-3
Quarter-Pound
Single Con. PVC Neck : 13.9 k
Bridge : 14.61 k Neck : 4.3 KHz
Bridge : 3.9 KHz .25" Alnico V Rods 7 / 3 / 6 Compare Tone

STK-J1
Classic Stack
Four Con. Neck : 11.6 k
Bridge : 20.5 k Neck : 8 KHz
Bridge : 7 KHz Alnico V Rods 7 / 5 / 6 Compare Tone

STK-J2
Hot Stack
Four Con. Neck : 17.8 k
Bridge : 25.2 k Neck : 6.9 KHz
Bridge : 5.5 KHz Alnico V Rods 6 / 6 / 6 Compare Tone

Basslines Pickups for 5-String Jazz Bass
Model Name (click for details) Cable DC Resistance Resonant Peak Magnet EQ
B/M/T Output User Type
67/70 & 70/74
5-String Passive Single Coils
Two Con. Shielded Neck : 7.8 k
Bridge : 8.2 k Neck : 4.8 KHz
Bridge : 4.9 KHz Alnico V Rods 6 / 8 / 7 Compare Tone

AJB-5
Active 5-String
Two Con. Shielded Neck : 13 k
Bridge : 8 k Neck : 4.9 KHz Ceramic Bar 6 / 5 / 8 Compare Tone

SJB-5
5-String Stack
Four Con. Neck : 11.37 k
Bridge : 20.11 k Neck : 5.1 KHz
Bridge : 4.9 KHz Ceramic Bar 7 / 5 / 7 Compare Tone

Basslines Passive Pickups for P-Bass
Model Name (click for details) Cable DC Resistance Resonant Peak Magnet EQ
B/M/T Output User Type
SPB-1
Vintage for P-Bass
Single Con. Cloth Bridge : 11.6 k Bridge : 11.6 KHz Alnico V Rods 5 / 4 / 5 Compare Tone

SPB-2
Hot for P-Bass
Single Con. PVC Bridge : 22.4 k Bridge : 7.14 KHz Alnico V Rods 5 / 6 / 5 Compare Tone

SPB-3
Quarter-Pound for P-Bass
Single Con. PVC Bridge : 12.5 k Bridge : 10.2 KHz .25" Alnico V Rods 7 / 4 / 6 Compare Tone

SCPB-1
Vintage for single coil P-Bass
Single Con. Cloth Bridge : 7.98 k Bridge : 6 KHz Alnico V Rods 5 / 7 / 7 Compare Tone

SCPB-2
Hot for single coil P-Bass
Single Con. PVC Bridge : 14.14 k Bridge : 4.3 KHz Alnico V Rods 5 / 5 / 8 Compare Tone

SCPB-3
Quarter-Pound for s/c P-Bass
Single Con. PVC Bridge : 11.81 k Bridge : 4.5 KHz .25" Alnico V Rods 6 / 8 / 8 Compare Tone

Basslines Pickups for Rickenbacker & Music Man Bass *Each coil **In parallel
Model Name (click for details) Cable DC Resistance Resonant Peak Magnet EQ
B/M/T Output User Type
SRB-1N
Replacement for Rickenbacker Bass
Four Con. Neck : 9 k Neck : 11 KHz Ceramic Bar 4 / 4 / 7 Compare Tone

SRB-1B
Replacement for Rickenbacker Bass
Four Con. Bridge : 8.3 k Bridge : 8 KHz Alnico V Rods 6 / 4 / 7 Compare Tone

SMB-4D
4-String Replacement for Music Man
Four Con. * 2.6 k ** 9.4 KHz Ceramic Bar 7 / 8 / 6 Compare Tone

SMB-4A
4-String Alnico Replacement for Music Man
Four Con. * 4.18 k ** 9.9 KHz Alnico V Rods 8 / 8 / 5 Compare Tone

SMB-5D
5-String Replacement for Music Man
Four Con. * 2.9 k ** 7.8 KHz Ceramic Bar 7 / 8 / 6 Compare Tone

SMB-5A
5-String Alnico Replacement for Music Man
Four Con. ** 5.01 k ** 8.35 KHz Alnico V Rods 8 / 8 / 5 Compare Tone

Basslines Steve Bailey Fundamental Fretless (Active Pickups)
Model Name (click for details) Cable DC Resistance Resonant Peak Magnet EQ
B/M/T Output User Type
AJB-2ASB
Pickup, Preamp System, 4-, 5-String
Two Con. N/A Neck : 8.2 KHz
Bridge : 6.8 KHz Ceramic Bar 6 / 5 / 7 Compare Tone

ASB-2ASB
Pickup, Preamp System, 6-String
Two Con. N/A Neck : 8 KHz
Bridge : 7.1 KHz Ceramic Bar 8 / 4 / 7 Compare Tone

Seymour Duncan Mini-Humbuckers
Model Name (click for details) Cable DC Resistance Resonant Peak Magnet EQ
B/M/T Output User Type
SM-1
Vintage
1-Con Braid Shield Neck : 6.54 k
Bridge : 7.57 k Neck : 7 KHz
Bridge : 6 KHz Alnico V Bar 5 / 4 / 6 Compare Tone

SM-2
Custom
Four Con. Neck : 8.52 k
Bridge : 16.41 k Neck : 9 KHz
Bridge : 4 KHz Ceramic Bar 5 / 6 / 6 Compare Tone

SM-3
Seymourized
Four Con. Neck : 6.29 k
Bridge : 11.6 k Neck : 7 KHz
Bridge : 4.8 KHz Alnico V Bar 7 / 5 / 6 Compare Tone




Copyright © 1996-2006 Seymour Duncan. All rights reserved.
www.seymourduncan.com | www.basslines


​

 

[beaubrummels]

Something seems off with the KHz unit there.

 

[switchman]

Is there an official published tolerance from then or now?

Are readings taken at 72F (~22C) temperature?

I noted last winter a couple of Jazz Necks made recently a few years apart were barely 7.2K when the indoor temperature was in the mid 60's. I don't know if there's a formula for how the temperature of both the object and the meter affects the measurement.

 

[Artie]

id love to see the pdf artie.

not sure why the discrepancy, but there are a lot of differences. some pretty small

PM me your email. Even a PM won't let me do an almost 300k file. And of course, I've scanned it with my virus software.

 

[freefrog]

Something seems off with the KHz unit there.

The "KHz" measurements translate the frequency of each resonant peak and globally, I don't see these numbers as "off"...

For example, these old Duncan data were evoking the SH4 as resonating @ 5.5khz. S. Errede (University of Illinois Urbana-Champaign) measured it in his lab @ 5.175kz... A difference of 325hz is not shocking: it might even simply be due to the parasitic capacitance of the probes / plugs / wires used to do the test.

Precising the resonant frequency like that appeared as a bonus to me. I'd be grateful if such infos were more systematically shared, as well as the inductance readings of passive transducers (provided during years for the Antiquity models, so Duncan can do it). ;-)

 

[StvnMikel]

I was thinking about this in reguard to the JB and Distortion. I remember at some point the DC resistance on the JB being 16.9 and the Distortion being 15 point something in the specs on the website.

 

[beaubrummels]

The "KHz" measurements translate the frequency of each resonant peak and globally, I don't see these numbers as "off"...

Oh, I thought you were comparing old measurements with current measurements. Like you said, hard to read.

 

[akio]

I also wonder if the DCRs were calctimated based on turns and linear resistance or actually measured from production samples, both then and now.

 

[Artie]

I don't know if Duncan et al. would object to this old chart, but I'd be happy to share it with anyone who'd like it. Perhaps I could send it to Dave and he could post it.
It has other info on it, just not the new stuff.

Just let me know.

 

[freefrog]

Artie, the list of specs that I've shared as a rough text file in post 9 is an equivalent of your old chart, AFAIK. Sharing it as "text only" was my way to try to help in this situation...

 

[Artie]

Thanks freefrog. I also forgot, I think I can do a Google Drive link. I have two versions. One is a PDF and one is a pic. I think the pic I cobbled together from segments, but it has some newer pups on it.

https://drive.google.com/file/d/18cOomhQY9gzfTQvOOlQ6qEByQh3l-drv/view?usp=sharing
https://drive.google.com/file/d/1oJ-OuwIvj46DsTYzzuWZn-KhMkvgrKLd/view?usp=sharing​

 

[Mincer]

I don't know if Duncan et al. would object to this old chart, but I'd be happy to share it with anyone who'd like it. Perhaps I could send it to Dave and he could post it.
It has other info on it, just not the new stuff.

Just let me know.

You can post it here if you want. I don't have the ability to post it on the main site. Historical stuff is fine in context.