Electric Doorbell

Electric Doorbell, 1003170 [U21854], Vacuum
More on the way
Bell for demonstrating electro-magnetic operation of apparatus and verifying that sound waves do not propagate in a fine vacuum (< 1 hPa).
Open acrylic housing with 4-mm safety sockets.
Power supply: 6 V AC
Dimensions: 100x95x50 mm³
Item No.: 1003170 [U21854]
Weight 0.117 kg
Brand 3B Scientific
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