S1957N
- Magnet(s) : AlNiCo V
- Pole(s) : Magnetic rods
- Bobbin(s) : Single coil - Certified Heavy Formwar
- Flat/Staggered : Staggered poles
- Output : 160 MVolts
- Freq. Res. : 4.5 KHz
- Notes : Neck position
S1957M
- Magnet(s) : AlNiCo V
- Pole(s) : Magnetic rods
- Bobbin(s) : Single coil - Certified Heavy Formvar
- Flat/Staggered : Staggered poles
- Output : 160 MVolts
- Freq. Res. : 4.5 KHz
- Notes : Middle position, RWRP on request
S1957B
- Magnet(s) : AlNiCo V
- Pole(s) : Magnetic rods
- Bobbin(s) : Single coil - Certified Heavy Formvar
- Flat/Staggered : Staggered poles
- Output : 160 MVolts
- Freq. Res. : 4.5 KHz
- Notes : Bridge position