Carbon film vs metal oxide film resistor?

AllanMarcus · 1987

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Offline AllanMarcus

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on: March 31, 2018, 05:53:08 PM
My mainline kit came with two 100k ohm 3W Carbon film resistors, rather than metal oxide. Is there any chance these two resistors on the C4S boards will make a difference if they were metal oxide?
« Last Edit: April 01, 2018, 03:15:42 AM by AllanMarcus »

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Offline adydula

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Reply #1 on: April 01, 2018, 01:07:33 AM
Could you post a pix of them?
Alex



Offline AllanMarcus

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Reply #2 on: April 01, 2018, 04:07:22 AM
well, I think I might be wrong on the carbon vs metal. I'm not at home, but they look just like this, but say 100 not 10

http://www.electronicsurplus.com/koa-speer-rss3-104j-resistor-mox-100k-ohm-3w-package-of-10

I see now these are likely metal oxide.

I just got thrown because all the other resistors have the colored bands, and these 3W ones do not. It might not be carbon film, but it's different. As a mouth breathing, instruction follower, different is concerning.

So if there is nothing to see here, I will happy solder on.

OK, I am curious as to why these don't have the color bands. Might as well learn something.

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Offline Paul Birkeland

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Reply #3 on: April 01, 2018, 05:57:24 AM
They are just a different brand but the same part.  This particular resistor is not in the signal path either, so brand and type are far less concerning.

Paul "PB" Birkeland

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Offline AllanMarcus

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Reply #4 on: April 01, 2018, 05:58:54 AM
Ok, thanks.

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Offline fullheadofnothing

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Reply #5 on: April 01, 2018, 07:21:16 AM
Parts get discontinued.

Sometimes the replacement looks like what is shown in the manual. Sometimes it doesn't.

Joshua Harris

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Offline adydula

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Reply #6 on: April 01, 2018, 08:51:22 AM
Yup, they are the exact same thing in mine...np.

Enjoy your build!! It goesby too fast!

Alex