Surf Pi Professional Pcb's back in stock - NEW Prices

[Waikiki_Sweep]

I have tried HEXSEALs to waterproof pots. WORKS GREAT!!!

I thing it was just a matter of time until I added a detector to my collection for shallow water hunting. Can anyone share what they have done in the way of waterproof pots and headphones?
Don

Once I have found that advice on forum to use APM Hexseal nut to waterproof pots told by Carl and ApBerg.

So I have tried it and it works great. Only the problem you have to find proper pot that will fit by diameter and Thread Size:

http://www.digikey.com/scripts/dksearch/dksus.dll?vendor=0&keywords=HEXSEAL+rotary

After hours of searching and comparing I have found only one pair Hexseal / pot that fits
both of them are for Shaft Size 0.25" (6.35mm) and Thread Size 3/8-32 NEF

$3.10 BOOT ROTARY SHAFT 3/8-32NEF GRAY Shaft Size 0.25" (6.35mm)Thread Size 3/8-32 NEF-2B

http://www.digikey.com/product-detail/en/N9030X1%2F4%202/335-1016-ND/340293

$3.64 (now $4.00) Resistance (Ohms) 100K Actuator Length 0.787" (20.00mm) Actuator Diameter 0.250" (6.35mm) Actuator Type Slotted Shaft

http://www.digikey.com/product-detail/en/P260P-D1BS3CB100K/987-1331-ND/2408908

You can see it on photo and in my last new detector "El Monstro" (named for huge long slim fiberglass coil 8.5'x16.5' 5mm thin)

Pot is used to adjust SAT speed (100k resistor + 100k pot in line) to allow the machine to move very fast in water if bottom conditions permit it.

[nux]

Hi all, I just finished writing up a tutorial on how to build this kit after all the help ive gotten from this site! Hope it can help anyone interested in detecting build one of these without needing to read a bajillion posts.

My surf pi 1.2 tutorial

Thx

[Nezocas]

Hi all, I just finished writing up a tutorial on how to build this kit after all the help ive gotten from this site! Hope it can help anyone interested in detecting build one of these without needing to read a bajillion posts.

My surf pi 1.2 tutorial

Superb

[drinnird]

Hi all, I just finished writing up a tutorial on how to build this kit after all the help ive gotten from this site! Hope it can help anyone interested in detecting build one of these without needing to read a bajillion posts.

My surf pi 1.2 tutorial

[Frederick]

Hi i will contact you in 2 weeks about supplying the baracuda detector parts
Frederickl

[Qiaozhi]

I need to be able to provide simple detectors for people who are new to the hobby here in South east Queensland Australia. Even if we build them ourselves, because many people are telling me that they have to go to E bay to buy second-hand detectors.
Our website is attracting many people and they want detectors after seeing our videos
www.Goldfinders.com
Cheers Frederick

Your website seems to have a default "search" page. I couldn't find any useful information there.

Edit: OK - I've just noticed that you posted the wrong link. There should have been a ".au" after the name.
However, the second link is very very very slow to load. You might want to take a look at that.

[Frederick]

Thankyou

Silverdog
Can you send me a some detector parts- pcb loop instructions ect so I can assemble and evaluate it
for use on our site please
www.goldfinders.com.au

Paypal ?
Bank deposit ?
Cheers

[Frederick]

I need to be able to provide simple detectors for people who are new to the hobby here in

I need to be able to provide simple detectors for people who are new to the hobby here in South east Queensland Australia. Even if we build them ourselves, because many people are telling me that they have to go to E bay to buy second-hand detectors.
Our website is attracting many people and they want detectors after seeing our videos
www.Goldfinders.com
Cheers Frederick

[yhl]

hello

hello

[satdaveuk]

hello satdaveuk

use cat cable with higher diameter cat 5 ist to thin
better cat 6e or search wiki for utp network cable twisted pairs and the hole cables have only one shield for example stp type cable every pair has his own shield and that would be to much metal shield should be so small that it wouldnt be detected by the coil which is shielded with it

wire connecting is easy
easy example
start orange
orange connect to green
green to blue
blue to brown
brown end

so orange and brown are connected to pcb

Yes I understand what series means and wouldnt dream of using cat5e with screen for ovious reasons.
The cable I experimented with was cat5e unshielded which I carry in stock, the proper stuff what I use when installing networks, not the crap thats floating about on fleebay.

Has anyone else here actually tryed either paird or single to make a pi coil rather than using one complete cat5e and wiring in series, because if you haven't I sugest you try it and tell me your results to see if they marry up to my results, otherwise will have to make the surf and prove results myself.

Regards

[bernte_one]

hello satdaveuk

use cat cable with higher diameter cat 5 ist to thin
better cat 6e or search wiki for utp network cable twisted pairs and the hole cables have only one shield for example stp type cable every pair has his own shield and that would be to much metal shield should be so small that it wouldnt be detected by the coil which is shielded with it

wire connecting is easy
easy example
start orange
orange connect to green
green to blue
blue to brown
brown end

so orange and brown are connected to pcb

[satdaveuk]

Hi
Can someone explain in theory how using a cat 5/6 and connecting the cores in series, works the same as running continous single or pairs.
The reason why im asking is because by wiring in series within the network cable as a whole your in effect going from start of the coil to the end, then back to the start and so forth, unlike conventional winding which is start to finsh in one run.

It oviously works because a few of you here have had success and its been done previousy that way for a few years, I myself have tryed both ways using the Minipulse3 and striping cat5 and wiring continous is by far better result where as by series the cables has givin me very poor results.
Maybe its down to detector design, maybe not.
Many thanks in advance

Regards

[neptune769]

Hello Everyone,

I am not new to this forum but I have been away for several years. Several years ago I started building a Hammerhead 1. But since I moved I can't find the populated board now to finish the project. Reading through the forum I came across the Surf PI. I am now collecting the parts to build one. I am having trouble finding a supplier for C9-C12, the 1nF stacked polyester cap. I have looked at Digikey and Mouser and all I can find are 630vdc. Looks like overkill to me. I don't know enough about electronics to be able to find a substitute. I know enough to put a "kit" together. I was hoping someone could guide me in the right direction. Also looking through my components I found the items listed below. The numbers are not exactly the same as listed on the Surf PI part list. Will these work? One last question. Would it be better to have the "offset" & "Delay" pot external or on board? Thank you in advance.

NE555P
NE5534AP
LM358P
ICL7660
TC4066BP

Regards,
Dennis

[golfnut]

I got a few blank surf PI boards.

Recently populated and made a simple " dia coil 20t 0.3mm and it works suprisingly well - my coil has no sheild either.

Battery and pcb (wrapped in a pizza flyer so I dont get a jolt off the pulses) in coat pocket, long 2m RG174 to coil on a bamboo stick.

Adjusted without scope or meter. good little project you can start and use in the same day.

coil fits in pocket too, handle doubles as ramblers cane.

My try the pro one day

S

[sinclairuser]

hi all/silverdog i'm not the sort of person that sucks up (though i give credit where its due)

i've read all this thread and i'm getting really interested in one of your kits have not decided which yet i would not normally buy a kit as i dislike cheap rubbishy components but yours seem a cut above
full marks to the board designer too add to that a price to suit all pockets and im sold expect an order through your site soon