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Electric Doorbell
Electric Doorbell

Retail Price $105.00
Today's Online Price $99.75
You save $5.25!

Product Code: 3B-U21854


Bell for demonstrating electro-magnetic operation of apparatus and verifying that sound waves 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 mm≥

Vacuum Bell Jar (U21851) and Vacuum Experiment Plate (U21850) sold separately.

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