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| MUV-2 | MUV-4 |
| This switch has a delayed arming feature. | This switch has a delayed arming feature. |
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| VZD-3 | VZD-6 |
| Six hour delay timer. | |
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| MUV
This appears to be the original MUV without the delayed arming features. This particular example was found in Iraq recently but is marked "myb-583-61". In cyrillic MYB means MUV in English. |
MV-5
Pressure switch, often used in mines. |