[time-nuts] Ventilation of HP 58503A GPS time & frequency reference receiver

Bob Camp kb8tq at n1k.org
Sun Dec 14 17:35:40 EST 2014


Every one that I found showing enough detail had the bumper with feet rather than the feet that clip into the case. A couple of power options are illustrated (DC and AC) with various option numbers attached.


> On Dec 14, 2014, at 5:25 PM, Alan Hochhalter <alanh137 at gmail.com> wrote:
> What Bob suggested is just what I did.  The leapsecond photos happened to
> be the very first ones.  I was careless when typing and didn't think about
> gmail creating a link out of it.
> Alan
> On Sun, Dec 14, 2014 at 2:13 PM, Bob Camp <kb8tq at n1k.org> wrote:
>> Hi
>> If you type 58503A into Google, it will come up with a whole raft of
>> pictures of various angles on the device. Since none of them are from HP /
>> Symmetricom, any / all *could* be fakes. Logic suggests that at least 90%
>> of them are the real thing.
>> Bob
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