Made of steel, 12 x 5 mm in pairs ; half red & half blue (for N & S) spray painted, with keepers.
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Plotting Compass Glass for Physics Lab – Magnetic needle mounted on pivot in aluminium case with both sides glass with cross lines at 90°. (a) 20 mm (b) 25 mm (c) 50 mm.
Suspension Magnet for Physics Lab – Cylindrical chrome steel magnet with hole in the centre
Plastic switch for experiments.
Bell Electric for Physics Lab – With detachable plastic cover, dome gong. For use on 3 to 12 V AC/DC supplies.
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