Surf Pi Construction video released

[pberrett]

Hi everyone

Thanks for the recent help with the construction of my Surf Pi.

As promised I have featured a segment on my construction on the vidcast I help make - Amateurlogic in episode 65 just released today.

Here's the link and my segment starts at about the 40 minute mark.

https://www.youtube.com/watch?v=KG8k...6RKNtYxTlhAm2A

cheers

Peter VK3PB

[Thomas]

Well done, I enjoyed your project, I'm a nut about watching stuff like this. I watch all of the EEVblog videos. This will be an aid for a first detector builder.

[homefire]

What size Rod did you use for the pointer.

[sinclairuser]

have you had your pinpointer switch hooked up to a scope?, i have done experiments with this, and at usefull delay times simple switches are not sufficient.
in the barracuda a switch like that at standard delay apprears to work well, until you scope it, then you see why its not a trivial matter.
it really needs both connections on both coils isolating and switching independently, at least a pi does imho.

[pberrett]

My pvc pipe has "dn 15 pvc-u pressure pipe" written on it.

I haven't hooked it up to a scope but my switch switches both leads from one coil over to the other. It just works.

cheers Peter

[homefire]

What size was the Ferrite Rod?

[pberrett]

Not sure. Its about 3 inches long and 1/2 inch wide. Its a pretty standard size.

cheers Peter

[homefire]

Thank You Sir.... I will work it out.