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  #101  
Old 10-14-2021, 05:21 AM
kostas87 kostas87 is offline
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Join Date: Apr 2011
Location: Greece
Posts: 186
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Quote:
Originally Posted by gaucho1961 View Post
Hello friends,
What chip is this with a red circle ??
Does anyone in the forum know how to identify it ??
Or give some opinion or suggestion based on the scheme of this circuit.
Thanks to all who can help me.
.

Attachment 20202
Hi gaucho! It's the (NTE 74C14)
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  #102  
Old 10-18-2021, 09:36 PM
kostas87 kostas87 is offline
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Originally Posted by Geo View Post
look here ...


About coil stimulator search for old threads about it and about DCH85.
Geo ...if the receiver is correct it is not a bfo detector for metals but for cw and ssb.
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  #103  
Old 10-19-2021, 04:15 PM
abdou2014 abdou2014 is offline
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I NEED SOME DERTAILS PLS HELP
DIAMETER OF THE COIL AND WIRE ( BLUE AND RED )
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  #104  
Old 11-22-2021, 05:13 AM
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Geo Geo is offline
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Originally Posted by abdou2014 View Post
I NEED SOME DERTAILS PLS HELP
DIAMETER OF THE COIL AND WIRE ( BLUE AND RED )
Wire of loop is 2.5mm^2 and the wire of potcore is 1mm diameter but i think is not critical
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Geo
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  #105  
Old 03-06-2024, 09:20 PM
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aft_72005 aft_72005 is offline
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Originally Posted by brasilpb View Post



Hello... This circuit is not displayed.. Does anyone have the circuit to re-upload it?
Regard
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