[time-nuts] Re: Z3801A Temperature

[Mike Feher]

Since I built an AC supply in my 3801, I replaced the solid top cover with a
copper mesh due to the extra heat caused by the linear supply that I built
inside it. It has been working fine for the last 18 years.  Regards - Mike 
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell NJ 07731
848-245-9115

-----Original Message-----
From: Dana Whitlow <k8yumdoober at gmail.com> 
Sent: Monday, July 19, 2021 9:02 AM
To: Discussion of precise time and frequency measurement
<time-nuts at lists.febo.com>
Subject: [time-nuts] Re: Z3801A Temperature

Hal, in cases where it is physically applicable, the temperature rating is
generally that of the flange which is intended to be bolted to a heat sink.

Dana


On Mon, Jul 19, 2021 at 7:30 AM Hal Murray <halmurray+timenuts at sonic.net>
wrote:

>
> I have one sitting on a shelf.  No air-conditioning.  The top plate is 
> warm, far from hot.
>
> Will they be happy if I stack another one on top of it?
>
> The users guide says 50C.  What does that mean if they don't specify 
> the air flow?  Is there an assumption that it is floating with lots of 
> empty space around it or something similar?
>
>
> --
> These are my opinions.  I hate spam.
>
>
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