AV multiband VLF receiver

[fmnotes]

HELLO.
YOU DREW SOME CONCLUSION ON THIS MANUFACTURE, IT CAN IT HELPS IN THE RESEARCH OF TREASURE?
A SIMPLE GAME?
I THANK I WAIT FOR YOUR ANSWER.

[WM6]

HELLO.
YOU DREW SOME CONCLUSION ON THIS MANUFACTURE, IT CAN IT HELPS IN THE RESEARCH OF TREASURE?
A SIMPLE GAME?
I THANK I WAIT FOR YOUR ANSWER.

No game, this is real receiver.

It is way better than mineoro, rangertell and other expensive crap too.

[fmnotes]

No game, this is real receiver.

It is way better than mineoro, rangertell and other expensive crap too.

I THANK FOR YOUR ANSWER,
THEN I BELIEVE THAT IT DESERVES THE LABOR I MANUFACTURE HIM.

2 QUESTION.
It can detection gold general metals (treasure) from distance?

2) IT WOULD HELP IF WE ADD IN THIS MANUFACTURE A TRANSMITTER OF LOW FREQUENCIES?????

[indiana jones]

And what is right UM66 ?


You're really Santa Claus. HAHAHAHAHAHAHA


UM66


- Auswahl aus folgender Reihe:
UM66T-01L - (5x vorhanden) - Jingle Bells + Santa Claus is Coming To Town + We Wish You a Merry
UM66T-01S - (5x vorhanden) - Jingle Bells + Santa Claus is Coming To Town + We Wish You a Merry
UM66T-02S - (5x vorhanden) - Jingle Bells
UM66T-04S - (5x vorhanden) - Jingle Bells + Rudolph, the Rednosed Reindeer + Joy to the World
UM66T-05S - (5x vorhanden) - Home Sweet Home
UM66T-06S - (5x vorhanden) - Let Me Call You Sweetheart
UM66T-08S - (5x vorhanden) - Happy Birthday to You
UM66T-09S - (4x vorhanden) - Wedding March (Mendelssohn)
UM66T-11S - (5x vorhanden) - Love Me Tender, Love Me True
UM66T-19L - (5x vorhanden) - For Elise
UM66T-19S - (5x vorhanden) - For Elise
UM66T-32L - (5x vorhanden) - Waltz
UM66T-32S - (5x vorhanden) - Waltz
UM66T-33S - (5x vorhanden) - Mary Had a Little Lamb
UM66T-34L - (5x vorhanden) - The Train is Running Fast
UM66T-34S - (5x vorhanden) - The Train is Running Fast
UM66T-68L - (5x vorhanden) - Its a Small world
UM66T-68S - (5x vorhanden) - Its a Small world
- Alle Bausteine TO92 - Gehäuse
- Hersteller: UMC
- Betriebsspannung: 1,3V - 3,3V
- Stromaufnahme: 1,5mA
- CMOS - LSI - IC
- Alle notwendigen Tonerzeugungsbaugruppen sind integriert
- Power on reset, Melodie beginnt mit erstem Ton
- Piezo-Summer kann direkt angeschlossen werden
- dyn. Lautsprecher wird über zusätzlichen Transistor bzw. NF-Verstärker angeschlossen

[WM6]

2 QUESTION.
It can detection gold general metals (treasure) from distance?

2) IT WOULD HELP IF WE ADD IN THIS MANUFACTURE A TRANSMITTER OF LOW FREQUENCIES?????

2. Very very big gold deposit, maybe.

3. Yes transmitter can be very useful. I posted TX schematic in another topic.

And what is right UM66 ?

For start UM66T-68L or UM66T-68S should be ok, but I prefer For Elise..

[fmnotes]

2. Very very big gold deposit, maybe.







For start UM66T-68L or UM66T-68S should be ok, but I prefer For Elise..

3. Yes transmitter can be very useful. I posted TX schematic in another topic.

THEY IS THE MANUFACTURE WITH THE TBA820M?

(UM66T19L) THEY IS BETTER?

[WM6]

3. Yes transmitter can be very useful. I posted TX schematic in another topic.

THEY IS THE MANUFACTURE WITH THE TBA820M?

(UM66T19L) THEY IS BETTER?

Transmitter is based on NE555. You need very weak transmitter.

http://www.longrangelocators.com/forums/showthread.php?t=18464&highlight=vlf+transmitter

Which UM66 you use is of personal preference, in electronic mean all are the same.

[fmnotes]

Transmitter is based on NE555. You need very weak transmitter.

http://www.longrangelocators.com/forums/showthread.php?t=18464&highlight=vlf+transmitter

Which UM66 you use is of personal preference, in electronic mean all are the same.

IN WHO POINT OF BOX, THEY IS SUITABLE, FOR THE PLACEMENT OF AERIAL (ΑΝΤΕΝΝΑ) OF TRANSMITTER?
FOR CAPACITOR 200UF I USE ELECTROLYTE BIPOLAR?

[WM6]

IN WHO POINT OF BOX, THEY IS SUITABLE, FOR THE PLACEMENT OF AERIAL (ΑΝΤΕΝΝΑ) OF TRANSMITTER?
FOR CAPACITOR 200UF I USE ELECTROLYTE BIPOLAR?

Antenna can be part of the bottom of the box.

Which 200uF electrolyte, there is not such C in transmitter schematic?
If you ask for receiver, yes, it can be bipolar as unipolar too (in this case + pole should be on switch side).

[fmnotes]

Antenna can be part of the bottom of the box.

Which 200uF electrolyte, there is not such C in transmitter schematic?

C1. EXIST DOESN'T 200UF CERAMIC CAPACITOR, OR DOES EXIST?

[WM6]

C1. EXIST DOESN'T 200UF CERAMIC CAPACITOR, OR DOES EXIST?

200uF exist in receiver schematic (not in transmitter). Not ceramic but electrolyte. Look at my previous answer again.

[fmnotes]

200uF exist in receiver schematic (not in transmitter). Not ceramic but electrolyte. Look at my previous answer again.

THANK YOU VERY MUCH FOR THE HELP.
BE WELL.

[WM6]

THANK YOU VERY MUCH FOR THE HELP.
BE WELL.

Of course use of bipolar C is better (here how to build your own out of two equal unipolar):

http://s3.amazonaws.com/readers/2011/06/28/how-to-make-polar-capacitor_1.jpg

[fmnotes]

Of course use of bipolar C is better (here how to build your own out of two equal unipolar):

http://s3.amazonaws.com/readers/2011...apacitor_1.jpg

Yes I know him, but in I thank for your time.
A question, you know how much coils of wire does need the aerial ferrite?

[WM6]

A question, you know how much coils of wire does need the aerial ferrite?

I cannot say, it depend on ferrite rod used.

But you can establish approximate number of turns this way:
Turn up ten turn of wire on your ferrite rod.
Measure inductance of those windings.
Divide 57mH by measured inductance (expressed in mH) and then multiply results by 10.
End-result is your approximate number of turns needed.