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Hi Ismail.
Can you please help us with coils data, like, inductance, resistance of TX and RX coils.
I also don´t understand what it means that TX coils has 135 turns , plus 12 turns. Is there any picture or scketch of how to make the turns?
I also had view the test video, wich shows good performance. What about test on the field?
Finally i saw that this detector can be made to work like a two box, so please let us know that too.
In advance, many thanks
Nelson
Can you please help us with coils data, like, inductance, resistance of TX and RX coils.
I also don´t understand what it means that TX coils has 135 turns , plus 12 turns. Is there any picture or scketch of how to make the turns?
I also had view the test video, wich shows good performance. What about test on the field?
Finally i saw that this detector can be made to work like a two box, so please let us know that too.
In advance, many thanks
Nelson
Originally posted by ismail surek
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Hİ to all friends and nelson
tarsos is made in turksh by emekli amca
this vlf detector is work at 15,4 khz
Tx and Rx coil diameter 18cm but setting DD coil total diametre is about 24cm
Tx coil = 136 turn + 12 turn = 148 turn
after you can test with osicilascope to coil. It should be about 130v
osc 12turn if 12V 136/12=11,33 , 11,33x12=135,96V
And Rx coils sinus Vpp:
Rx coils acord condansator 6n8
Tx coils acord condansator 10n ( there is must to 60V between the 10n's base)
and at 1&3 pin but this acord condansators must to be in coils connection pcb at coilboard
in this picture there is 1k Resistor but this is pull out after setting coil.(it is for easy setting)
but screening Tx coil with aluminium gelatine full envirions and shield to ground
setting coil:
At first turn right end 22K pot
approach toeach other coil come to dead point.This is DİSC.
if you turn the pot left -right but no sound turn oposite to 22K slowly and set the disc
you have to hear of tarsos sound
after silent to sound with disc pot and doing fine tune of sound with G.E.B
tarsos is made in turksh by emekli amca
this vlf detector is work at 15,4 khz
Tx and Rx coil diameter 18cm but setting DD coil total diametre is about 24cm
Tx coil = 136 turn + 12 turn = 148 turn
after you can test with osicilascope to coil. It should be about 130v
osc 12turn if 12V 136/12=11,33 , 11,33x12=135,96V
And Rx coils sinus Vpp:
Rx coils acord condansator 6n8
Tx coils acord condansator 10n ( there is must to 60V between the 10n's base)
and at 1&3 pin but this acord condansators must to be in coils connection pcb at coilboard
in this picture there is 1k Resistor but this is pull out after setting coil.(it is for easy setting)
but screening Tx coil with aluminium gelatine full envirions and shield to ground
setting coil:
At first turn right end 22K pot
approach toeach other coil come to dead point.This is DİSC.
if you turn the pot left -right but no sound turn oposite to 22K slowly and set the disc
you have to hear of tarsos sound
after silent to sound with disc pot and doing fine tune of sound with G.E.B
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