which PI's have the largest coils?

[Anonymous]

im looking for an underwater PI with a 15" coil.

 

[Anonymous]

Assuming that your going to use this 15" in salt water, your going to have problems. <img src="/metal/html/cry.gif" border=0 width=40 height=15 alt=":cry">
That is if your using a modern sensitive PI unit. The 15" coil will most likely be affected by the salt in the water. If your using a PI with a slower pulse delay, say somewhere slower than 22/25uS., you could get away with it. Not real certain of the breaking point on the pulse delay.
Mr. Bill

 

[Anonymous]

Have a look at the Aquapulse that Research, Search and Salvage sell. This is available with a 15in coil. Minimum delay, if I remember correctly, is 30uS.
Eric.