Orange Beethoven mk7 shot exploder, NCB, National Coal Board equipment, UK - 100-shot capacitor discharge exploder, enclosed in a robust 'Noryl' box

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The Beethoven Mk 7 is a 100-shot capacitor discharge exploder, enclosed in a robust 'Noryl' moulded case. It is designed particularly to meet the requirements of blasting in gassy underground coal mines. The Mk 7 has an integral digital ohmmeter which can be used to measure the total circuit series resistance. The voltage required to initiate the detonators is supplied by a hand operated generator which charges a capacitor.

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Size: 5472px × 3648px
Location: Blaenafon, Torfaen, Pontypool, South Wales, Cymru, UK, , NP4 9XP
Photo credit: © Tony Smith / Alamy / Afripics
License: Licensed
Model Released: No

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