Hamfest find today: HP59309A Clock

[BobVA]

(08-08-2016 04:06 PM)Paul Berger (Canada) Wrote:  They are a nice clock, it looks like it is in good condition. I have two, one is running on the 10MHz from a GPSDO.

Cool! What's the base oscillator? Quartz? I've got a 10 MHz Rb oscillator, but I think I'd have to get a second job to pay my electric bill if I kept that space heater running 24/7.

I ordered a 2.5ppm 10MHz TCXO from a surplus seller. It's in a pretty small (SMD package) so I was thinking of replacing the stock quartz oscillator with it to increase the accuracy.

Unfortunately I don't have any HP-IB gear, so I can only fiddle with the front panel.

Ray Wrote:Nice find Bob,
I never knew they had a unit like that, I will have to start looking now.

Thanks! I'd had a search running on the auction sites, but the price was pretty high when they'd turn up. I think they must still be in use in some installations, keeping the prices up.

Accutron Wrote:I did have a pretty good HP find at Hamvention this year though - a mint condition HP 9000/300 Model 310, with a 9133 combo disk drive, monitor keyboard, cables, software and manuals for $100.

I'll say you did!