User`s guide

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From: Gilles Aurejac
018- What chip can I use to replace a bad RAM IC on my
IIe motherboard?
The 4164 (64k x 1) works on motherboards using eight memory chips. The RAM
on my motherboard is in sockets; so, it was easy to replaced a bad memory chip
with one.
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From: Rubywand
019- Could someone please post a resistor color code
chart?
Color Digit Multiplier (when 3rd band) Example
Black 0 x1 -- Red Red Black = 22 Ohms
Brown 1 x10 -- Blue Grey Brown = 680 Ohms
Red 2 x100 -- Orange White Red = 3900 Ohms
Orange 3 x1000 -- Yellow Violet Orange = 47k Ohms
Yellow 4 x10000 -- Red Green Yellow = 250k Ohms
Green 5 x100000 -- Orange Orange Green = 3.3M Ohms
Blue 6 x1000000 -- Red Yellow Blue = 24M Ohms
Violet 7 x10000000 -- ...
Grey 8 x100000000
White 9 x1000000000
Gold - x 0.1 -- Brown Brown Gold = 1.1 Ohms
Silver - x 0.01 -- Orange White Silver = 0.39 Ohms
Tolerance (4th band)
Red is <5% (courtesy of Edhel Iaur)
Gold is 5%
Silver is 10%
no color is 20%
Example: Grey Red Orange Gold is 82k Ohms +/- 5%
Example: Brown Black Green Silver is 1M Ohms +/- 10%
Note: carbon resistors almost always err on the high side.