Capacitance Substitution Box, Model 1138 Capacity_2000mL Designed to measure Planck's constant

Designed to measure Planck's constant through the photoelectric effect

Compact 14 by 12 by 11 cm autoclavable polypropylene basket organizes test tubes during experiments

this bottle of coarse 20-mesh iron filings is a staple for classroom magnetism and field-pattern demonstrations

this three-finger lab clamp pairs vinyl-coated prongs with a swivel bosshead for flexible rod mounting

Cork-jawed safety tongs measuring 12 inches in stainless steel accommodate both round-bottom flasks and straight-sided beakers

Capacitance Substitution Box, Model 1138 Capacity_2000mL Designed to measure Planck's constantTwelve position rotary capacitance substitution box selecting one capacitor at a time, providing a quick swap in reference for general purpose AC circuit and timing experiment work.