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

[Paul]

On Sun, Dec 14, 2014 at 4:08 PM, Dr. David Kirkby (Kirkby Microwave Ltd) <
drkirkby at kirkbymicrowave.co.uk> wrote:

> I'd like to find a picture of a *genuine* 58503A.
>

The instance pictured has the 16-char display option so it doesn't look
like many of the images you find of the 58503A.

<http://www.leapsecond.com/museum/58503a-01/>