replacement coil for surfmaster pi pro

[darkmark1967]

Hello all,
I could really do with replacing the coil on my whites surfmaster PI PRO, any ideas what I could use as a replacement. I'm uk based.
Happy Hunting,
Mark

 

[darkmark1967]

Well, that must mean no one knows.........what I could really do with is some info about the existing coil ie, inductance, resistance etc so I could maybe find a model that will work. Will my standard TDI PRO spider coil fit? It has 4 wires into the socket, whereas the PI PRO has only 2 wires that are hardwired into the control box. Has anyone ever tried to mount a multi coil set up on the PI PRO or Dual field?
Happy Hunting,
Mark

 

[Fishers Ghost]

You could try 350 uh and resistance below 2 ohms.

Size Shape Turns Wire size Inductance Resistance
Ø 120 mm Round 36 Ø 0.40 mm / 0.14 mm2 405 µH 1.9 Ohm
Ø 150 mm Round 31 Ø 0.40 mm / 0.14 mm2 394 µH 2.0 Ohm
Ø 175 mm Round 28 Ø 0.40 mm / 0.14 mm2 387 µH 2.1 Ohm
Ø 200 mm Round 26 Ø 0.40 mm / 0.14 mm2 406 µH 2.2 Ohm
Ø 250 mm Round 22 Ø 0.40 mm / 0.14 mm2 380 µH 2.3 Ohm
Ø 300 mm Round 20 Ø 0.50 mm / 0.20 mm2 390 µH 1.6 Ohm
Ø 400 mm Round 17 Ø 0.50 mm / 0.20 mm2 396 µH 1.8 Ohm
Ø 500 mm Round 15 Ø 0.50 mm / 0.20 mm2 400 µH 2.0 Ohm
1.0 x 1.0 m Square 10 Ø 0.66 mm / 0.34 mm2 406 µH 2.0 Ohm
1.4 x 1.4 m Square 8 Ø 0.66 mm / 0.34 mm2 387 µH 2.2 Ohm
1.8 x 1.8 m Square 7 Ø 0.80 mm / 0.50 mm2 398 µH 1.7 Ohm

 

[dewcon4414]

You might also try contacting Whites.........they may give the best advice to ensure compatibility.