JB Jr. SJBJ-1 Bridge (Strat-size)
JB voicing in a Strat single-coil-sized humbucker
JB Jr. for Strat, bridge. Official product page: ceramic magnet, 4-conductor, wax potted; crunchy chords and screaming lead with classic upper-mid cut. Chart: 16.09 kΩ, 3.6 kHz, EQ 4/6/5. Neck: 9.6 kΩ / 5 kHz.
Connections at a glance
Use the terminal labels below when planning your circuit. Check the manufacturer's documentation for your exact component revision.
| Terminal | Label | Role | Lead colour |
|---|---|---|---|
| hot | Hot (black) | Signal hot | black |
| gnd | Ground (green) | Signal return · Ground | green |
| black | North coil finish (white) | Coil finish | white |
| white | South coil finish (red) | Coil finish | red |
| bare | Bare shield | Shield · Ground | bare |
Internal connections
hot → black: North coil: hot to north finish
white → gnd: South coil: south finish to ground
Understand this wiring
- Seymour Duncan humbucker wire colors
See the pickup, recognise its two halves, and learn where each coloured wire goes.