Hello to the forum, have in service a metal detector Metex 4.125 Military mine finder
not operational photo in attachment
Looking for any info about the 3 oscillators or schematic
Diagnosed no sound on the main headphones also no oscillator output voltage....
Also the headphones no res R=... (supposed 16 or more ohms)
Battery test switch (? what is that)......
when pushed voltage drop to 9V if input voltage 10.5V
Nominal voltage 6 batteries 1.5V 6*1.5V = 9V (simple math)
Any info on the oscillator schematic or other parts
Any help on this metal detector (mine finder) is welcome
Regards
Dodano po 56 [minuty]:
Update
Fixed the headphones broken wires inside the cable .......
Checked the impedance if the speaker infinite ohm ???
Sound audible on the output now testing with coil connected next day .......
keep informed
not operational photo in attachment
Looking for any info about the 3 oscillators or schematic
Diagnosed no sound on the main headphones also no oscillator output voltage....
Also the headphones no res R=... (supposed 16 or more ohms)
Battery test switch (? what is that)......
when pushed voltage drop to 9V if input voltage 10.5V
Nominal voltage 6 batteries 1.5V 6*1.5V = 9V (simple math)
Any info on the oscillator schematic or other parts
Any help on this metal detector (mine finder) is welcome
Regards
Dodano po 56 [minuty]:
Update
Fixed the headphones broken wires inside the cable .......
Checked the impedance if the speaker infinite ohm ???
Sound audible on the output now testing with coil connected next day .......
keep informed
