BARACUDA-Legend-1

[bion]

This is mi configuration and works very good:

Here is mi video: http://www.youtube.com/watch?v=6bI4cKPYfEY

[mohandes]

Check the resistor behind the IRF9640, the correct value is 1K.

my dear friends wilson and bion
it is a COMIC mistake . i wrote in my resistor box 1K , but inner it 10k !!!!!!!!!!!
when i soldering dont attention to them/
now my detector work but in Gate Q7 yet have near 7 volt
the sounds is good
but detection is bad
i take photo and put for you



and look the another








many thanks

[mohandes]

BUY

hemmmm
thanks all
know the GATE OF Q7 better (3volts up and become 10.1volts)
I REPLACE IT BY BF245B AND BECOME Ok
look :



now i find the coin (under pic )in 10 cm and when detect the sound not continue and say BIP and nothing ,,,,ok?




IMPORTANT :dear wilson and bion can you by for me BF245C and send to my country Iran./
I pay you .thanks

[mohandes]

This is the different

BF245C,112, JFET Transistor, N-Channel 25mA 30V, 3-Pin SPT

BF245B,112, JFET Transistor, N-Channel 15mA 30V, 3-Pin SPT

2N3819 , N-channel JFET, 2mA 25V

BF256B TO-92 N-ch 30V 13mA

BF256 Transistor N-Fet 30v idss18ma 4.5-5ms TO226 Similar to BF245

2N5485 Idss 10ma

[Wilson]

Mohande Hello, very nice now everything seems to be ok, as to fet keep the BF256. In datashheet it corresponds better to the original, ok.
Good hunting.

[mohandes]

Mohande Hello, very nice now everything seems to be ok, as to fet keep the BF256. In datashheet it corresponds better to the original, ok.
Good hunting.

but detection is very bad.
i want to buy bf245c another country but more expensive,
thanks

[mohandes]

Mohande Hello, very nice now everything seems to be ok, as to fet keep the BF256. In datashheet it corresponds better to the original, ok.
Good hunting.

for last request
teach me for find best r parallel to coil,i have pot and an set it but i dont know which R is best regards.
i can detect the above coin near 20cm.
thanks

[mohandes]

Mohande Hello, very nice now everything seems to be ok, as to fet keep the BF256. In datashheet it corresponds better to the original, ok.
Good hunting.

MY friend i think you see my different figure in pin6 ne5534 to your figure check these :





and my low detection UPSHOT this pics(dont like your pic)
I think the problem in mpsA13

can you send me value and pics about bc517???

can i replace it by bc337 or mpsa25

thanks and sorry me

[iulian002]

I can not see attached Images

[bion]

I can not see attached Images

Hi Iulian002.If you need something about this detector you can contactme and speak in Romanian lenguage.: [email protected].

Regards.Ion.

[mohandes]

Hi Iulian002.If you need something about this detector you can contactme and speak in Romanian lenguage.: [email protected].

Regards.Ion.

hi bion
can i ask you about value R parralel ???

[mohandes]

Hi Iulian002.If you need something about this detector you can contactme and speak in Romanian lenguage.: [email protected].

Regards.Ion.

my friend i think your detector same me.low depth(i see your clip)
say me your R parallel for your coil.

can i make new coil for barracuda by 0.20mm wire ??
regards

[mohandes]

hi Alexsis
can i parralel the cap to my coil ?

[Alexismex]

No ,it is a PI pulse detector

[Toros]

Mohandes,
Typically, the resistor is 330 Ohms. Contact oscilloscope to pin 6 NA 5534. Instead resistor 330 ohm put resistor 220 ohms in series with potentiometer 1 kilohms. Potentiometer is placed in position - max. Begin to reduce the value of the potentiometer until the oscilloscope signal is clear and no parasitic peaks. Measured values of the pot and add to it 220 ohms. You'll get the value of the resistor that you care. Change resistor 220 ohm and potentiometer with another resistor, which has an estimated value of you. You're ready!