[ARC5] Ohmite Brown Devils

Tom Lee tomlee at ee.stanford.edu
Thu Dec 6 21:33:38 EST 2018


Or, if you want to perform more refined testing, mount the resistor as 
you plan to use it, then adjust the power delivered until the 
temperature rises by about 40 or so degrees (C). That will usually give 
you a relevant (and somewhat conservative) measurement.

--Tom

-- 
Prof. Thomas H. Lee
Allen Bldg., CIS-205
420 Via Palou Mall
Stanford University
Stanford, CA 94305-4070
http://www-smirc.stanford.edu
650-725-3383 (public fax; no confidential information, please)

On 12/6/2018 8:35 AM, J Mcvey via ARC5 wrote:
> When all else fails use empirical testing.
> Apply 600V across it and se how hot it gets!
> they might be OK - or get more brown
>
> On Thursday, December 6, 2018, 3:32:42 AM EST, <cfb at themuseums.org> 
> wrote:
>
>
> I tried their search link as well, to no avail. What I meant was to 
> send them a question via their contact form, 
> https://www.ohmite.com/contact/
>
> *From:*Mark K3MSB [mailto:mark.k3msb at gmail.com]
> *Sent:* Wednesday, December 05, 2018 6:02 PM
> *To:* cfb at themuseums.org
> *Cc:* ARC5
> *Subject:* Re: [ARC5] Ohmite Brown Devils
>
> Already tried the Ohmite web site.   Nothing came up.
>
> Mark
>
> On Wed, Dec 5, 2018 at 7:58 PM <cfb at themuseums.org 
> <mailto:cfb at themuseums.org>> wrote:
>
>     Mark,
>
>     You could try asking Ohmite directly: https://www.ohmite.com/
>
>     Charles
>
>     *From:*arc5-bounces at mailman.qth.net
>     <mailto:arc5-bounces at mailman.qth.net>
>     [mailto:arc5-bounces at mailman.qth.net
>     <mailto:arc5-bounces at mailman.qth.net>] *On Behalf Of *Mark K3MSB
>     *Sent:* Wednesday, December 05, 2018 5:38 PM
>     *To:* ARC5
>     *Subject:* [ARC5] Ohmite Brown Devils
>
>     I have some 30K Ohmite Brown Devils #1768  N8149 resistors.
>
>     I think they're 12W from scouring the web, but can't find any site
>     that actually says so.
>
>     Can anyone confirm?
>
>     73 Mark K3MSB
>
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