Bausch & Lomb Spectronic 20, Spectrophotometer

1x Bausch & Lomb, Spectronic 20, Spectrophotometer

Description
Manufacturer: Bausch & Lomb
Model: spectronic 20
Condition: Used
Power Supply: 115 VAC - 0.3 A - 60 Hz

Specifications: T
The Bausch and Lomb Spectronic 20 spectrophotometer is a line-operated single-beam instrument.
Radiation from the source (a tungsten filament lamp) is dispersed by a replica grating,
and the desired wavelength is focused upon an exit slit.
The emergent beam passes through the cell compartment; that portion
which is not absorbed is measured by a phototube.
The response of the phototube is recorded in terms of transmittance (upper scale)
or of absorbance (lower scale).