Decade Capacitance Box, Model F Graduations_Ungraduated Bull frog dissection model with

Bull frog dissection model with open back reveals vertebral column

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

providing dense uniform spheres for ramp-and-collision experiments where a heavier projectile is needed than the plastic marbles can provide

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

hand-painted detail for blood-flow teaching

Decade Capacitance Box, Model F Graduations_Ungraduated Bull frog dissection model withUsed 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.