Thomas Electronics offers URSA Cathode Ray Tubes (CRTs) and other telecine transfer products for the military, industries and commercial marketplaces.
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URSA CRT Blemish Specifications
Quality Area: Overall Useful Screen 4.05" by 4.05"
(103 mm by 103mm)
A Zone is 103mm by 80 mm
B Zone is remainder of useful screen.
TEMPLATE: 245-448
Glass, screen and lamination defects, comprised of
opaque spots and bubbles within the stated useful screen
area shall not exceed the specifications defined below:
A Grade Screen, Blemish Spec:
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A Zone
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B Zone
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0 Blemishes allowed > 4 FM
< 4 Disregard
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3 Blemishes allowed > 9 and <
13 FM
0 Allowed > 13 FM
9 Disregard
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B Grade Screen, Blemish Spec:
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A Zone
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B Zone
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< 3 Blemishes allowed > 4 and <
8
< 4 disregard
> 8 not allowed
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< 3 Blemishes allowed > 9 and <
13 FM
0 Allowed > 13 FM
< 9 Disregard
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C Grade Screen, Blemish Spec:
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A and B zones together, full
useful screen
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< 3 Blemishes allowed > 9 and
< 13 FM
0 Allowed > 13 FM
< 9 Disregard
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TK Type
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A Screen
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B Screen
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C Screen
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URSA
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7M514P46
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7M560P46
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7M561P46
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MKIII Extended Cradle
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7M554P46
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7M562P46
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7M563P46
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MKIII Old Cradle
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7M557P46
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7M564P46
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7M565P46
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