From:
         
          steveR 
    Date:
          6/19/2001 9:39 PM
 Subject:
          Re: Resistor Calculator software



I know you said you found one, but if it's not real convenient to have a
computer at the workbench, there are a couple things that may help you out.
 
It took me awhile to realize that there are some "standard" combinations that will
become easy to recognize. Then you just need to remember the multiplier.
 
10 brown black
12 brown red
15 brown grn
22 red red
27 red violet
33 orange orange
47 yellow violet
56 green blue
68 blue grey
82 grey red
 
I don't know why but I haven't seen any "7X" or "9X" values much. 
 
Then to remember the multipliers, I just remember the resulting power of ten I
want:
 
xx = black
xx0 = brown
x.x K = red
xx K = orange
xx0 K = yellow
 
1 meg = brown black green
 
Note that most values in guitar amps that are below 1K are going to be 2 watt
or greater. They'll be PS dropping resistors or cathode bias resistors.Very likely
they'll be the blocky cement 5 or 10 watt power resistors and will have the
value printed right on them.
 
Hope that helps somebody...
 
steveR