A Phase/Polarity Checker for DCC and DC
copyright Bob Backway 1998
Back to DCC Articles Menu
Back to ADCC home page
Parts:
Small piece of 0.1" veroboard 11 holes long by 7 tracks wide
(You will have to trim this from a larger piece using a pair of cutters)
300mm red wire
300mm black wire
2 Red E-Z hooks
2 Black E-Z hooks
D1-4 Two lead bicolour (red/green) LEDs
R1-4 2KWresistors
When placing the LEDS pay attention to the "flat" on one side of the base and place them as shown in the assembly diagram.
LED Pattern Label showing track situation:
