But, what
is the resistor color code for negative ohms?
A pigment that reflects only
infrared?
Outside the 2..7 range, there is no spectral order. (Black, brown,
grey, and white are not part of the spectrum in the usual sense.)
Still, the idea makes some sense. But most floating-point formts are
sign-magnitude, and I see no reason this would be different - perhaps
the body should be a different colour?
That's what I would have suggested, except what do you do about
body-tip-spot coded -ve resistors :-) :-) :-)
Some old Tekky 'scopes have colour-coded wires for the main power supply
rails. The 2 stripes give the 2 post significant digits of the supply
voltage (it is assumed there's not a 15V and 150V supply in the same
instrument, for example), the base colour is, IIRC, white for a +ve rail
and black for a -ve one. Soe there is some precedent for changing the
background colpur for -ve resistors :-)
-tony
