Induction Coil / Interrupters/ Duboi's Raymond induction coil:
On a teak wood base with graduated scale.
Primary coil with 300 turns and Secondary with 7500 tuns with Helmholtz modification of neef's hammer and heavy duty platinum contacts.
Student Induction Coil :
On a teak wood base with graduated scale.
Primary coil with 300 turns and secondary with 6500 turns.
Interrupter working directly off the iron core.
Complete with heavy duty contacts.