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IV. IDENTIFICATION AND FUNCTION OF VARIOUS COMPONENTS
L ~ g h t
p a t h selector
k r ~ o l )
/
Pull out the selector k n o b all
the way for photomicrography.
A n a l y i c l - scaic
Tension adjustment ring
A r r o w mark ~ n d i c a t e s Increase
in coarse adjustment tension.
Voltmeter
\
SIlcIinq c o n t ~ ~ o l
lever
For c o n t ~ n u o u s l y variable light
intensity.
\
L ~ i c v o l ~ ~ g ~
selector
switch