Electricity and Magnetism – Central Science Supplies https://centralscience.spiderns.com School and College Science Supplies Tue, 13 Oct 2026 15:47:16 +0000 en-GB hourly 1 https://wordpress.org/?v=7.1.3 Resistance Substitution Box https://centralscience.spiderns.com/product/resistance-substitution-box/ https://centralscience.spiderns.com/product/resistance-substitution-box/#respond Tue, 13 Oct 2026 15:47:16 +0000 http://centralscience.spiderns.com/product/resistance-substitution-box/ Our Resistance Substitution Box provides the easily selection of 11 preferred value carbon resistors, ranging from 100R to 10M.

The values (in ohms) range from: 100R, 330R, 1k, 3k3, 10k, 33k, 100k, 330k, 1M, 3M3 and 10M. All of the resistors offer a power rating of 0.5W continuous and 1W maximum for a short period of time, with an actual resistance value tolerance of ±5% . The unit is housed in a robust ABS plastic case with a rotary selector switch (this switch also has an OFF position) and a pair of 4mm connection sockets.

Dimensions : 98 x 148 x 80mm

Mass : 0.32kg

Resistor Power Rating : 0.5W continuous (1W short periods of time)

Resistance Tolerance : ±5%

Electrical Connections : 4mm Sockets

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