Special Colors
For some customers, Tektronix made special front panels. Apparently some military applications specified a certain kind of color/texture. Also, some systems integrators sold racks of equipment configured for some specific purpose and wanted to make the rack look more like a unified product. The systems integrators would ask the third-party providers (e.g., Tektronix) to supply the instruments with a specific appearance.
Tektronix instruments from the beginning through the 7000 series typically have dark writing on unpainted metal panel. Some special-color panels (e.g., the light gray CA shown below) retain the dark writing. Other special-color panels (e.g., dark gray CA shown below) use light writing to maintain contrast.
Green RM32
Brown 502A
Green Type B
Black 2B67
Black 3B3
Light Gray CA
Dark Gray CA
White RM547
Gray R561B
Green 3A1
Green 3B3
Gray RM503
Green RM503
Gray 547
Gray 547 with gray Type W
Gray 547 with gray Type W
Black RM 503
Black RM 503
Greenish 7B71
Green RM565
Light gray 3A1
Pale green 7A16A next to one in standard finish
Blue AM503
Black 1A1
Cream early 1A1
Cream Type CA
White Type B
Black Type 545
Green Type Z
Green 7A18
Black S-6
Gray 526
Gray RM529
Blue 515A
gray 3A5
gray 53/54B
Gray 3A8
Green 3B2
Black S-6
Bluish-grey 360
Orange L
Gray 3A75
Brown RM561
Cream Type D
White Type 53/54C
White 3A6
White 3S76
Cream Type 84
Green Type G
Green Type 67
Green Type 72
Cream Type R
Green 3A74
Green RM561A
Gray 3A2
White RM504