View Single Post
  #2   Report Post  
Posted to uk.d-i-y
Andrew Mawson Andrew Mawson is offline
external usenet poster
 
Posts: 1,158
Default OT-ish: resistor value solver


"pete" wrote in message
...
Does anyone know of an online utility that can calculate
what combination of series and parallel resistors are needed
to get a particular value?
Specifically, I'm trying to calculate the best way to get
close to 5250 Ohm, using E12 preferred values. Power consumption
is not an issue and I'd like the value to be +/- 2% as that's
the resistor tolerance.

I'm not looking for the answer, I'm looking for the way to
find the answer. There are lots of websites where you can
tap in resistor values and have it calculate the result, but
that gets long winded. I've got a combination that gives
5253R with 4 resistors, but I'd like to do better


...he..he - showing my age, but in the era of solid carbon resistors it
was very simple. Choose a value slightly lower than you want, then
with the Avo across it on Ohms file a nick in the carbon until it was
spot on. Excellent for making meter shunts and the like.

AWEM