Eureka/Constantan Bare Wire, Model C Capacity_250mL Demonstrates the full light-to-electricity-to-motion chain

Demonstrates the full light-to-electricity-to-motion chain through a solar cell

and image-formation work

this 15-inch motion-converter model shows the engineering principle behind crankshaft pistons and rotary-to-linear mechanisms

this EHT supply adds a center-tapped ±2

Heavy 150 x 25 x 15mm Alnico U-shape with clearly marked poles and a keeper bar

Eureka/Constantan Bare Wire, Model C Capacity_250mL Demonstrates the full light-to-electricity-to-motion chainReel of 20 SWG bare constantan wire at 125g and 0. 91mm diameter, sized for thermocouple junction and precision resistor construction where temperature stability matters.