Whites Surf PI schematic

[sido]

can i put 9volt battery in SURFXX board

Really requires 12 Volts for best performance.

Sid

[nando.22]

surf pi works but little sensitivity to coins

[joop]

Try turning the offset pot of the NE5534.

[nando.22]

turn the pot displacement of NE5534 not change anything which coil and ideal for design

[bernte_one]

got my last machine working correctly yesterday
the troubles i had before was a result of experimenting with wrong coil values and wrong offset settings
i prefer isolated litz wire (simple monoloop)
i you should try to make your first settings far away from any metal believe it
turn the offset trimmer so that the machine gets a little bit noisy (threshold and gain to70% delay under 50%)
thats the point i used to start
when detecting you can turn it down to run in silent mode or you release the last 30% percent of power
i´m going to make a video so you can see what i mean

if anyone needs homemade pcb within europe i can help (without drilling and silkscreen) very cheap, but only for forum members

kind regards

[medj]

Is it an easy and powerful circuit tested

[david135]

Hi all, I want to know the function of capacitor 1000uf and if any of you are in search of a project shipwrecks offer myself as a mailbox or some ayuda.saludos.i

[nando.22]

My problem is little sensitivity

[joop]

My problem is little sensitivity

Hi Nando,

The only thing you can do now is check your component values and voltages. Without a scope it is very hard to determine the cause.

[medj]

Thank you
I see it's weak response
Change some resistors

[david135]

I wondered if the condendador 1000uf faith is for the energy of the coils or to the circuit, and yes it would be good idea to change it to a bank capacitors faith

[seadoggy]

hello guys do anyone have working single side PCB for surf pi???if any one have pls post here link.thx alot guys

[paku]

i need help i have make surfxx an i was finish the board
but i got problem
http://www.geotech1.com/forums/showt...-PI-Pro/page11

[medj]

To my knowledge
Present but weak response
The problem you have to wrap the wire
Some programs used the account winding wire
I will raise you some good sites to calculate the winding wire
http://coil32.narod.ru/calculate-on-line-en. html
http://coil32.narod.ru/calc/flat_spiral_coil-en. html
http://www.consultrsr.com/resources/eis/induct.
http://coil32.narod.ru/calc/one_layer-en.html
This program where everything
http://www.4shared.com/rar/7XIqq2aX/medj.html: |

[nando.22]

how many turns of wire and coil resistance which is ideal for surfing pi