[Amps] pi-net spreadsheet question

[Ron Youvan]

>> Let me get this straight: Resistors don't change in the lower value
>> direction and when they do below a certain value they burn up.
>>
>> Right?
>>
>> 73, Bill W6WRT

   I can not follow this tread to it's originator, but:
   I had a sub-assembly fail a week or two ago and the problem was a 39 k Ohm 2 Watt resistor (one 
of two) had burned it's self DOWN to 30.09 OHMS and the increased current burnt up a 470 Ohm at 2 
Watt resistor.  The other 39 k Ohm 2 Watt resistor was not so effected.
   The 39 k Ohm 2 Watt resistors and a 1 k Ohm 1/2 Watt resistor (for each) drop (+ and -) 170 Volt 
supplies (divide by 40) into a comparator (each) and detect power supply failures.
In operation since May 2002.
-- 
    Ron  KA4INM - The next election, I know what is going to happen, I'm going to help.