TM 11-5840-217-34-1
1-2. COLOR CODING FOR CAPACITORS AND RESISTORS
TRANSFORMER COLOR CODE (RMA STANDARD)
COLOR OF
POWER
AF TRANSFORMER
IF
LOUDSPEAKER
LEAD
(ALSO LINE-TO-GRID AND TUBE-TO-LINE)
XFMR
FIELD
VOICE
BLACK
PRIMARY (COMMON FOR
GRID RETURN
GRID OR DIODE
START
TAPPED PRIMARY)
RETURN
BLACK AND
RED
FINISH OF TAPPED PRIMARY
START
BLACK AND
ELLOW
PRIMARY TAP
RED
HIGH VOLTAGE
B PLUS
B PLUS
RED AND
YELLOW
HIGH VOLTAGE TAP
FINISH
YELLOW
RECTIFIER FILAMENT
GRID OR CENTER-TAPPED
(CT-YELLOW AND BLUE)
SECONDARY
GREEN
FILAMENT NO 1
GRID
GRID OR DIODE
FINISH
(CT-GREEN AND YELLOW)
BROWN
FILAMENT NO 2
PLATE OR CENTER-TAPPED
(CT- BROWN AND YELLOW)
PRIMARY
SLATE
FILAMENT NO 3
TAP-SLATE
(CT-SLATE AND YELLOW)
AND RED
BLUE
PLATE
PLATE
7
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