Induction Coils Box form with reversing switch (except 5 mm and 10mm size) which allows primary current to be reversed and to be switched c coils are made of best quality insulated wire and paraffin wax insulation is throughout. Fitted with Tungston contacts complete with removable spark dischargers with on/off switch for primary and two bakelite terminals lock type for input.Spark in air in mm. 10 15 20 25 37 50 75 100
Box form with reversing switch (except 5 mm and 10mm size) |