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General => General Technical Chat => Topic started by: Jan Audio on September 27, 2021, 03:31:20 pm

Title: Resistor color not correct
Post by: Jan Audio on September 27, 2021, 03:31:20 pm
Hi, when i started this hobby i ordered 100 piece 820 ohm resistors.
They dont have a brown line, instead they have a black line ( 82 ohm )
Have you ever had wrong labeling before ?

bye
Title: Re: Resistor color not correct
Post by: Nusa on September 27, 2021, 03:35:10 pm
Or you got the wrong product and the label is correct.
Title: Re: Resistor color not correct
Post by: Jan Audio on September 27, 2021, 04:22:50 pm
No i mean the paint color on the resistor itself.
The bag says the right 820 ohm, the paint is black not brown.
Title: Re: Resistor color not correct
Post by: harerod on September 27, 2021, 04:34:04 pm
Manufacturer order code? How many rings? Picture of the suspect? What is the actually measured resistance?

Ah, and try to move this question to the Beginner section, please.
Title: Re: Resistor color not correct
Post by: Cubdriver on September 27, 2021, 06:43:29 pm
I'll second the 'have you actually measured them' question, and my second question would be where were they ordered from - a mainstream supplier, or somewhere like ebay or Amazon, which I'd consider to be considerably sketchier as component sources?

-Pat
Title: Re: Resistor color not correct
Post by: Benta on September 27, 2021, 07:09:51 pm
Most leaded resistors today have three-ring colour codes for the digits, regardless of whether they're E12, E24; E48 or E96  series.

An 820-ohm resistor would then be gray-red-black-black plus the tolerance ring.

Title: Re: Resistor color not correct
Post by: Jan Audio on September 29, 2021, 02:56:35 pm
https://www.youtube.com/watch?v=NBMt58qJKJ0 (https://www.youtube.com/watch?v=NBMt58qJKJ0)
Title: Re: Resistor color not correct
Post by: ejeffrey on September 29, 2021, 03:33:26 pm
Please never do that again.  We don't need a 1 minute out of focus, badly exposed and glare filled video.  Post a *photo* with decent resolution.

Anyway, yeah that looks wrong.  I would expect to see either grey/red/brown + gold or grey/red/black/black + gold.  It looks to me like someone decided that if the multiplier is 10^0 they could just leave the band off.

Where did you get these?
Title: Re: Resistor color not correct
Post by: Jan Audio on September 29, 2021, 04:01:03 pm
In a german shop a very long time ago, the bag says : made in taiwan roc.