US$ 36.95
allowing a sodium or filament lamp to be aimed precisely onto a spectrometer slit or refraction-cell setup
Built for the classic thermal-expansion demonstration
reading -50 to 300°C at ±1°C accuracy up to 200°C for a range of lab heating
Spark in 20mm
Economy Linear Expansion Apparatus with Aluminum, Brass, and Iron Rods Prong_2 allowing a sodium or filamentEconomy steam heated expansion apparatus on a 27 inch base with three 19. 75 inch rods in aluminum, brass, and iron, a steam inlet tube, and a dial gauge readout.
US$ 36.95
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