This apparatus has been designed primarily for demonstration of the basic principles of the a.c. transformer. The various coils and cores will also serve as the basis of many experiments in electromagnetism using either direct or alternating current.Contents:1 laminated 'U' core length of side 95 mm base 150 x 40 x 40 mm1 each of clamp base yoke clamping bar and securing knobs (pair) for U-core1 x 300-turn 4A coil2 x 600-turn 2A coils1 x 1200-turn 1A coil1 x 3600-turn 0.3A coil centre tapped1 x 12000-turn 0.05A coilIn the basic transformer set all coils are fitted with 4mm socket connections. All coils are of enamelled copper wire wound round on high impact plastic moulded bobbins 75mm long with cheeks 75 x 60mm. The robust clamping base is provided with a tommy-bar screw to hold the 'U' core and two knurled nuts secure the armature and provide for easy changeover of the coils. Soft iron pieces locate on top of the 'U' core arms.Associated Products:Mains Coil - B8R08129Induction Accessory Set - B8H26606