Non-metallic detector schematic!

[luciano furtado]

[ATTACH][/ATTACH]

Q1,Q2=BF494
Q3,Q4,Q5=BC238 = BC548NPN
Q6=BC558PNP
D1=1N60 OU 1N34
D2,D3=1N914
CV=
C1,C2,C3,C4=1n5
C5,C6=470pF
C7,C8=56pF
C9,C10=100pF
C11=100nF
C12=4,7uF
C13=100pF
C14=220uF
R1,R2=2K2 x 1/8W
R5,R6=3K3 x1/8W
R7=10M x1/8W
R8=100K x1/8W
R9=1K x 1/8W
R10=220K 1/8W
P1=470K COM CHAVE LIG/DES
B1=9V
FTE=8OHMS

[Esteban]

No infos about fix oscillator and variable oscillators? (L1 & L2) Text?

Regards

[luciano furtado]

No infos about fix oscillator and variable oscillators? (L1 & L2) Text?

Regards

Of course, dear friend, I built this detector, and sencivel.achei several coins, jewelry, etc ...

Good ... ..
L1 = ferrite rod of about 5 cm long by 0.8 or 1 cm in diameter. (Can break with one hit very careful if you have more difficulty in getting one of this size)

L2 = a coil of diameter 15 cm with 28 AWG wire with 15 volvos together ok.

My tests with this detector:
# operating system ........ beats two osciladorespor change of inductance.

# current consumption at rest .......( 5 mA)

Food ..... # 9V (battery)

OBJECTIVE # detected ...... ferrous and non ferrous, aluminum, copper, gold, etc ...

# Diameter coil l2 ....... 15cm

# Type alert ...... sound speaker

# sensitivity ........ currency (5cm)
....... can of beer (30cm)
....... pot 30cm (80cm or more)

note: I noticed that while the older the more buried metal sencivel is the detector.

thank you very much

[luciano furtado]

Note: the coil operator should leave 4cm height ok

[luciano furtado]

the CV or variable capacitor used in the setting and pelomenos 100pF, can be used CV type used in medium-wave radios are problems.

Grateful for the space friends.

[Fred]

the CV or variable capacitor used in the setting and pelomenos 100pF, can be used CV type used in medium-wave radios are problems.

Grateful for the space friends.

"pelomenos"= at least

[luciano furtado]

"pelomenos"= at least

"more settings" = at least
hehehehe ....
"more settings" = at least = "to the value of 120pF"
to pass this value has to rebuild new calculations for the coil.
sorry my English friends ok

[hung]

Hello friend cordius not understand what code you want, plus the blog and my personal commitment made in the schemes and electronic detectors Anyway love being here at the forum of Geotech learning and passing knowledge with friends ok
descupe errors in English
the address of my blog = http://eco-eletro.blogspot.com/
Thank you very much.

E aí parceiro, de que Estado voce é? Do sul?
Interessante seu blog.

[Qiaozhi]

"more settings" = at least
hehehehe ....
"more settings" = at least = "to the value of 120pF"
to pass this value has to rebuild new calculations for the coil.
sorry my English friends ok

It appears that the spam problems with your blog have been resolved.

[Fred]

E aí parceiro, de que Estado voce é? Do sul?
Interessante seu blog.

De Porto Alegre,parceiro, esta no blogue dele escrito bem grande .

Bom blogue Luciano, obrigado!

[detectoman]

my pc inform me, what page web of furtado, have activex program inside and may be can access to our files

[luciano furtado]

E aí parceiro, de que Estado voce é? Do sul?
Interessante seu blog.

I live in the state of Rio Grande do Sul, in Brazil in Porto Alegre.
Thank you for visiting my blog soon I will post new topics and schemes tedectores there and some here thanks

[hung]

I live in the state of Rio Grande do Sul, in Brazil in Porto Alegre.
Thank you for visiting my blog soon I will post new topics and schemes tedectores there and some here thanks

Fala, tchê!
Legal, voce é amigo do gaucho, henrique gloor?
Tambem lido com esses esquemas sobre detecção não convencionais. To cheio de inventos.
O seu email tá no blog? Vou ver se te mando um quando tiver um tempinho pra gente bater um papo sobre essas coisas.
Abração.

[luciano furtado]

Fala, tchê!
Legal, voce é amigo do gaucho, henrique gloor?
Tambem lido com esses esquemas sobre detecção não convencionais. To cheio de inventos.
O seu email tá no blog? Vou ver se te mando um quando tiver um tempinho pra gente bater um papo sobre essas coisas.
Abração.

Legal friend will be very good to exchange idea with you in the forum i have a lot of ideas on things I learned and practiced with friends here in the South have a research group here in my region oque are always riding and modifying layouts to better ok good friends

[luciano furtado]

Localiser metal more good old schema.