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From: john larkin <JL@gct.com>
Newsgroups: sci.electronics.design
Subject: Re: dumping a lot of heat
Date: Sat, 07 Dec 2024 09:43:27 -0800
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On Sat, 7 Dec 2024 17:24:49 -0000 (UTC), Hul Tytus <ht@panix.com>
wrote:

>   I have used some 2 watt resistors that showed about 600 degf by
>iron/constantan but a red glow within could be seen by eye. Well above
>stated limits of 2 watts. Can't remember the name they went by
>but they were'nt wound types. 
>   The aluminum housed resisters are handy. 50 watt types have 
>done much duty here. 
>   
>Hul


I had a case where there was a powerup surge, and it destroyed the big
Mil-type alum case resistors. They generally opened and shorted to the
case.

The Welwyn thick-film porcelain-on-steel things worked great, bolted
to the chassis.