HP 59309A lab clock
Posted By azog on June 15, 2009
I couldn’t resist picking this up:
An HP 59309A lab clock. Geez, could they have found any more microscopic LED displays? I don’t have a whole lot of information, can’t find service / user manuals for it, but it appears to be a decently stable lab clock with an HP-IB interface:
Of course, I don’t have an HP-IB interface. From the brief searching I did, it appears an HP-150 PC had one built in, but good luck on me finding one of those. You don’t need an HP-IB interface to operate it, you can set it via the front panel, but if you want to share the time across a lab, then it would be useful.
I don’t know how old this thing is, but it’s surprising extremely clean on the inside:
Well, it’s hard to see, but the copper is extremely shiney. But there are an awful lot of TTL devices, so I’m guessing it’s at least from the 80s.
Dunno what I’ll do with it.
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The extremely shiny copper is actually gold.
I have one of these too that I run off my Efratom MFS-286 GPS/Rubidium master clock using the 5mhz output. It’s a cute little clock and yes… those traces are gold plated. All high end H-P stuff of the day was.