Capacitance Substitution Box, Model 1138 Capacity_2000mL this three-finger lab clamp pairs

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

Built to grip round flasks and condensers during distillation or reflux

Designed to measure Planck's constant through the photoelectric effect

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

Hand-driven Newton's color disc that spins seven painted segments fast enough to merge into apparent white through persistence-of-vision and additive color mixing

Capacitance Substitution Box, Model 1138 Capacity_2000mL this three-finger lab clamp pairsTwelve 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.