[sdiy] Wire Colour coding

[John L Marshall]

Electrical house USA:
Black = Hot 120 V
Red = Hot 120 V (probably 180 degrees from black)
White = Common
Green or Bare = Ground

Power Transformers:
Red = high voltage
Red/Yellow = center tap
Green = filament
Green/Yellow center tap
Yellow = rectifier filament

Interstage transformer:
Red = B+
Blue = plate
Green = grid
Black = ground

Personal Computer:
Black = ground
Brown = +3.3 V sense
Red = +5 V
Orange = +3.3 V
Yellow = +12 V
Green = power on
Blue = -12 V
Violet = +5 V standby power
Grey = power is okay
White = -5 V

This list could go on forever.

Power ground, logic ground, signal ground are all different. Look in the
archives, there have several thorough discussions on this list in the recent
past.


Take care,
John
www.sound-photo.com
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----- Original Message -----
From: "David Reichert" <sysyphus at sympatico.ca>
To: "'Synth-DIY list'" <synth-diy at dropmix.xs4all.nl>
Sent: Friday, March 21, 2003 1:20 PM
Subject: [sdiy] Wire Colour coding


>
> Hello all,
>
> Apart from the obvious Red means +ve power, black means -ve power, green
> means ground and white means neutral (I still don't know how that
> differs from ground), are there any other standard wire colours for
> specific types of lines?
>
> If not, does anyone here use their own colour scheme for wiring?
>
> Thanks in advance,
> Dave
>
>