What version schematic in Whites Surfmaster pi [purple top]

[6666]

Would anybody know what version of schematic that the Whites Surfmaster pi [purple top]
uses ?
thanks
6666

[kt315]

you mean one with double field coil?

[6666]

Hi Kt315
I will have to ask the owner about the coil, an get back to you
all I have been told so far is the control box has a purple top.

[Pulse]

I want to make a good detector. could you advise this detector for good performance?

[kt315]

waiting anything new in this thread. may be one will be give more better definition photos of the PCB.

[6666]

Hi
the fellow who was making inquires about the purple top detector is not responding to my emails, but he was telling me by changing two capacitors, you can can get another couple of inches of depth from it, maybe as much as 4, but he cannot remember which ones.