[time-nuts] ancient OCXO info on HP 05110-6043 needed
paulswedb at gmail.com
Tue Dec 27 19:10:31 EST 2011
Always appreciate the pictures. Though I can't offer any help its good to
see and learn from others. That oven/oscillator looks in great condition
for a 40 year plus device.
On Mon, Dec 26, 2011 at 4:33 PM, Pete Lancashire <pete at petelancashire.com>wrote:
> I have the manual, some day I want to restore the 5100A I have. It may take
> a few days to where I can scanning the relevant pages.
> On Mon, Dec 26, 2011 at 12:19 PM, ed breya <eb at telight.com> wrote:
> > While looking for something in my OCXO department I ran across this old
> > piece from the 1960s. I had saved it from an HP5110 synthesizer carcass
> > years ago, but only the crystal oven unit remained - no oscillator or
> > control circuits.
> > Just thought I'd ask here if anyone has info or a source of a 5110 manual
> > that may have enough info to see what the rest of the circuitry was, and
> > it's worth fixing or reusing. The part is HP 05110-6043. I don't recall
> > seeing anything about this oldie anywhere.
> > It's a cylindrical type, about 2.25" OD, and 5" long, with four teflon
> > feedthroughs on the side for the crystal circuit connections. Also out
> > side runs a light gauge ribbon cable with six lines black, green, orange,
> > blue, gray, and red, presumably for the heater circuitry. On the side
> > the far end is a small plug cap, presumably covering a temperature
> > adjustment pot or thermostat. The crystal itself is huge, mounted inside
> > vacuum tube envelope. Judging by the size of the crystal and the big mica
> > caps with it, I'd guess it's 1 MHz.
> > Ed
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