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Wooden Frame Abacus, 4 U-Shaped Steel Wires Material_Muslin Banana-plug terminal electric bell operating

Wooden Frame Abacus, 4 U-Shaped Steel Wires Material_Muslin Banana-plug terminal electric bell operatingWooden framed abacus with four U shaped steel wires holding 20 plastic beads each on a 13 by 7 inch base, the compact option in the abacus series for foundational arithmetic.

SKU: 34907678268 · From ldesquadrias.com.br

4.0
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Description

Banana-plug terminal electric bell operating on 4 to 6 volts AC or DC with a 2

offering a spread of spring constants for simultaneous comparison in oscillation and Hooke's-Law experiments

used to trace field lines around bar magnets and current-carrying wires

and a motor accessory

95A single-phase rheostat on a 300x56mm tube with cover-protected constantan winding and 4mm safety socket terminals

Wooden Frame Abacus, 4 U-Shaped Steel Wires Material_Muslin Banana-plug terminal electric bell operatingWooden framed abacus with four U shaped steel wires holding 20 plastic beads each on a 13 by 7 inch base, the compact option in the abacus series for foundational arithmetic.

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