Spectrometer, Intermediate 1275
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Spectrometer, Intermediate 1275
this is a Robust Instrument Designed Specifically for Student Use Which Nevertheless is Capable of Very High Performance. the Main Structure is of Heavy Cast Metal, with Bright Plated Fittings.
a - Scale: the 150mm Diameter Circle with Protective Shield is Fixed to the Telescope Movement and the Table is Attached to the Double-ended Rotation fine Adjustment Screws, and Release of a Clamping Screws Enables Adjustment of Both Movements to Be Made By Hand.
b - Collimator: Mounted On Fixed and Fitted with 178mm Focus Achromatic Objectives, 25mm Clear Aperture. also Fitted is a Unilaterally Adjustable Slit, 7mm Long.
c - Telescope: Mounted On Moveable Pillar and Fitted with 178mm Focus Achromatic Objective, 25mm Clear Aperture. also Fitted is a 8x Ramsden Eyepiece and a Glass Crossline Graticule. Both the Telescope and Collimator have Rack and Pinion Focusing. Means are Provided for Leveling the Axis of Both Optical Units and for Squaring Them to Axis of Rotation.
d - Prism Table: the Table is Marked with Lines to Assist Placing the Prism Will Respect to the Table Leveling Screws.
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