My first guess was possibly a variation on the French F series ( similar to F-2) firing device used with Claymore type mines, but not sure now. I could be way off. It takes 1 D cell battery, instead of 2 on F-2, also different input/output arrangement. Any info would be appreciated.
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Electronic Fuze Identification, possibly a French?
It is called the 'TEST UNIT' or 'CONTROL UNIT' in english.
The control unit consists of two main components and is used remotely to check that the circuit is correct. The unit comprises a battery container, which
accepts a battery type LR20 (NBA3030 in French military nomenclature) and a body which contains the electronic circuitry. These two components screw together and the joint is sealed by use of an O ring. The following components are situated on the top of the body :
1 A two pin plug which mates with one of the twin pole sockets on the safety and control line Tee connector.
2 A test lamp which lights when the fuze circuitry and power supplies are correct.
3 A test button which enables the state of the control unit to be verified
Cheers,
S.
The control unit consists of two main components and is used remotely to check that the circuit is correct. The unit comprises a battery container, which
accepts a battery type LR20 (NBA3030 in French military nomenclature) and a body which contains the electronic circuitry. These two components screw together and the joint is sealed by use of an O ring. The following components are situated on the top of the body :
1 A two pin plug which mates with one of the twin pole sockets on the safety and control line Tee connector.
2 A test lamp which lights when the fuze circuitry and power supplies are correct.
3 A test button which enables the state of the control unit to be verified
Cheers,
S.
Indeed a great video on the subject. As per my habit, I disassembled the device to see what is inside. Nothing much just a transistor, a diode and a couple of resistors, as well as an old incandescent bulb. What is fascinating was the transistor used, a Germanium BJT! you'd expect this type in devices from 70s. So are these are old stock laying around somewhere and never got updated?
The fuze is inside the rear panel, potted in silicone (white rectangle), near the batteries. Fuze name in French is "Allumeur électronique à rupture de fil" (breakwire electronic fuze ?). It is activated by the fracture of a double fine wire laid in the line of fire. At 4'26'' he show the test unit, the det and 2 fine wire reels.
Cheers,
S.
Cheers,
S.