63-Piece Worcester Electrical Circuit Board Kit Physics_Light & Optics sized to keep electromagnetism demonstrations

sized to keep electromagnetism demonstrations running when the original coils wear out

sized for high-turn-count solenoids and transformers where the wire needs to wrap many times around a small core

step-up/step-down ratios

and airway anatomy at scale

supported on die-cast end pieces with a nickel-plated phosphor-bronze sliding contact

63-Piece Worcester Electrical Circuit Board Kit Physics_Light & Optics sized to keep electromagnetism demonstrationsHard plastic 13x13 inch Worcester circuit board with 12 metal poles and 4 banana terminals, the foundation for student built series parallel circuits and electromagnetic induction demonstrations.