-40%
5x Copper graphite cinema coals used like cuprum electrodes from 1973 USSR
5x Copper graphite cinema coals used like cuprum electrodes from 1973 USSR
5x Copper graphite cinema coals used like cuprum electrodes from 1973 USSR
5x Copper graphite cinema coals used like cuprum electrodes from 1973 USSR
5x Copper graphite cinema coals used like cuprum electrodes from 1973 USSR
5x Copper graphite cinema coals used like cuprum electrodes from 1973 USSR
5x Copper graphite cinema coals used like cuprum electrodes from 1973 USSR
5x Copper graphite cinema coals used like cuprum electrodes from 1973 USSR

5x Copper graphite cinema coals used like cuprum electrodes from 1973 USSR

$ 9.5

Availability: 69 in stock
  • Brand: KP
  • Condition: New

    Description

    5 pcs in 1 lot
    Old cinema coals copper-graphite. Brand and size: KP8-80x254, made in 1973 ex-USSR.
    Dimensions: 8x254mm
    They lay in the bins, in a dry, dark place.
    Apparently, they work in pairs (one on the positive electrode, the second on the negative) ...
    That's what Google says:
    Cinema coals produced for film projectors of the KPT family.
    An intense burning arc arising between copper-graphite rods was used as a light source in the lighting system of film projectors.
    Coal current was 90 amperes.
    Also, in modern realities, they can be used for welding copper compounds.