Model No.JW

D.C. Resistance 13.53 k
Resonant Frequency 5.00 kHz
Magnet Ferrite
Pole piece Spacing N56.5 B58.5
  Model No.MN04

D.C. Resistance N8.0 k  B8.3k
Resonant Frequency N3.95 kHz  B-kHz
Magnet Ferrite
Pole piece Spacing N54.8  B57.5
  Model No.MN05

D.C. Resistance N 9.8 k, B10.3 k
Resonant Frequency N kHz,     B - kHz
Magnet Ferrite
Pole piece Spacing N58.4  B60.7
Model No.NB

D.C. Resistance 8.33 k
Resonant Frequency 4.73 kHz
Magnet Ferrite
Pole piece Spacing 66.6