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![]() ARMY
TM 9-6650-235-13&P
MARINE CORPS
TM-08552A-13&P
1-10.
DIFFERENCE BETWEEN MODELS.
a. Early Configuration. Early configurations of the
M3 Borescope are supplied with the 24-V electrical
power cord adapter assembly. The adapter tube
assembly has an indicator light and two circuit breakers.
The illuminating head assembly has a one-piece
lampholder assembly body.
b. Late Configuration. Late configurations of the
M3 Borescope are not supplied with the 24-V electrical
power cord adapter assembly. The adapter tube
assembly has no indicator light and is equipped with a
toggle switch and one circuit breaker. The illuminating
head assembly has a two piece lampholder assembly
body. New style battery and slave cord assemblies are
provided and the eyepiece assembly has an added
optical element retainer. There is no optical instrument
prism.
1-9/(1-10 blank)
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