Creating a higer wattage resistor

[John Fields]

John, yes, that goes without saying.

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Well... no. This _is_ seb, after all

Without specifically mentioning that a measurement would have to be
made, your post implied that a 1% resistance could be obtained by
connecting appropriately valued 5% resistors right out of the box.

That is, let's say you wanted a 101 ohm resistance. From your post
it would seem that merely connecting a 100 ohm 5% and a 1 ohm 5%
resistor in series would get you there.

 

[redbelly]

---
Well... no. This _is_ seb, after all

Without specifically mentioning that a measurement would have to be
made, your post implied that a 1% resistance could be obtained by
connecting appropriately valued 5% resistors right out of the box.

That is, let's say you wanted a 101 ohm resistance. From your post
it would seem that merely connecting a 100 ohm 5% and a 1 ohm 5%
resistor in series would get you there.

Aha! No, let me explain what I meant (which is not necessarily what I
said

Suppose you want 1k ohms, within 1% accuracy. First you get a 5%, 1k
resistor and __measure it__. If it's not within 1% of 1k, use an
additional resistor to get there. If the "1k" is really 9500, then a
47 ohm 5% resistor in series will get you what you want. If the "1k"
is 1050, then a 20k or 22k in parallel gets you within 1%.

Mark