GOLD LEAF ELECTROSCOPE 2 LEAF - METAL Enclosed to prevent air currents from affecting the deflectio
ELECTRIC MOTOR MODEL Operates on 4-6 V battery, on wooden base with two 4mm socket terminals, provi
SIMPLE CELL COPPER PLATE W. 4MM SOCKET PLATES FOR SIMPLE COPPER CELL EACH PLATE IS FITTED WITH A 4M
"ZINC ELECTRODE FOR SIMPLE CELL W.SOCKET ZINC PLATE FOR SIMPLE CELL 90*25*1.5MM Each plate is fitt
