Whites Surf PI schematic

[bravodenisu]

Hi
The detector is work ok, but is just a little problem with audio volume that is to low.
Nelson

View and P4 (1K) if not burned.

[jap]

Hi nelson
try Q6=BC337-->MPCA 13, BC517
SP=PIZEZO.
best time
j.

[nelson]

Hi

I just trying to find a problem with my sufmaster from silverdog.

The detector is work ok, but is just a little problem with audio volume that is to low. I replace all IC´S and all seems to be fine, but just the problem with audio.
Any ideas please?

In advance many thanks

Nelson

[jap]

Hi bravodenisu
all modifications i do
-R34=33 ohm--->4.7 ohm.......OK
-COIL 23cm,20tu, 0.5mm---->COIL 23cm,20tu, 0.3mm...OK
-R6 390 ohm~ 680 ohm for small coil.......OK
-R2=3.3K ...OK
-For DELAY R25=15K, P3=50K....OK
-FOR GAIN R16=220K ,C6=470N ....OK
The most important thingis-1 a coil. -2 get -5v ,+5v. ok
3-Whites Surf PI schematic,pcb

http://174.132.129.189/~moreland/forums/showthread.php?t=13810&page=11

by oxygen007m .ok
-for PinPointer i do not .
best time
j.

[bravodenisu]

Hi! All !

These are some modifications that I found on forums all over the world regarding this detector. Maybe there's more but I did not want to exaggerate with so many modifications.
Before you start to make this detector asked all the people who know about it and have a lot of experience and also their experiments and give an opinion on the modification and development of this SURF-detectors. Is it good to be in general modifies something in it? What is good and what is not good???
It means a lot to those who have not yet made and wants to make this handsome SURF PI -detector to be more sensitized.
Would really like all who know and have experience to tell us here and especially how to make bobbin to be very good and very sensitized.
Your experience!

http://imageshack.us/a/img21/7905/testforum.jpg

[DIRCEU]

Hi! All

I made corrections in "SURF LONG PCB SINGLE SIDE 1 ".
Some jumpers and one wire conection were suppressed.
I add a new board.

DIRCEU

[DIRCEU]

Hi
Don't have .lay file?

Hi! Shahab

Sorry for delay.

DIRCEU

[Shahab]

Hi
I changed Silverdog 2-side PCB to 1-side.
I tried to keep Silverdog excellent design.
If you see some errors please tell me.
Thanks

[Shahab]

Hi! All

Hi
Don't have .lay file?

[Toros]

I look at PCB board (Black), shown on page 12 and I can not understand what they're used items marked with TP1, TP2, TP3 and TP4. The board has two points marked with GND, which are part of the common GND of the scheme. What they are used. Please someone let me explain.

[Kalyselo]

Question

To pin 6 ne5534 i have 0.018 V if i turn p1 not decrease not increase voltage.
Know someone who could be the problem?
Any idea?

[Kalyselo]

Thank you very much!

kalyselo

hi. check this list http://www.silverdog.co.uk/shop/imag.../partslist.txt

Thank you very much!

[antuan30]

kalyselo

hi. check this list http://www.silverdog.co.uk/shop/imag.../partslist.txt

[Kalyselo]

you have any list with components parts ?

[Kalyselo]

you have any list with components parts ?

you have any list with components parts ?