Decade Capacitance Box, Model F Graduations_Ungraduated supplying replacement bulbs for four-cell

supplying replacement bulbs for four-cell battery packs and the standard 6V ray-box and panel-lamp apparatus

this seven-piece set traces fetal delivery from engagement through crowning to placental separation for labor and delivery teaching

Bull frog dissection model with open back reveals vertebral column

panel-mounted with 4mm sockets and an enclosed earth connection for safe wiring during induction and AC demonstrations

and continuous DC demonstrations beyond the reach of dry-cell stacks

Decade Capacitance Box, Model F Graduations_Ungraduated supplying replacement bulbs for four-cellUsed to substitute calibrated capacitance into AC circuits without rewiring, this decade box selects cascaded values for RC time constant, resonance, and frequency response student work.