No subject

the color codes, then:

Red: +20V switched, i.e. osc power supply.
Black: Ground.
Purple: HOVC i.e high oven cold (where high is 20V or so).
Orange: +22V oven supply.

The Corning branded version of the OSC92-51B is still available NOS.  I put
one in my 8566B.  I got a few spares too.  Ignore the ridiculous ebay
prices if you want one and try Quest components who may still have a few
(though you'll pay their line item minimum if you only want one).

* It was > 70 Hz out and could not be adjusted into spec.


On Tue, Apr 13, 2021 at 3:58 PM Bob kb8tq <kb8tq at n1k.org> wrote:

> Hi
>
> Since this is a part that Ovenaire made for HP, probably the best way to
> work out what’s what is to find the equipment that it went into. Best guess
> is that would be an item that shows up in the 1985 ~ 2005 HP catalogs.
>
> ( = OSC92 is an Ovenaire part number that was carried on after McCoy
> folded Ovenaire into the “empire”). That makes it a > 25 year old spec.
>
> Rough guess at the specs:
>
> 5x10^-8 over 0 to 70C
> -150 dbc/Hz at 10 KHz offset
> 10 dbm +/- 3 db
> 10W power at turn on.
>
> With the fine adjust it may or may not have an EFC. There are enough pins
> for
> it to have one.
>
> Pinout looking at it with the SMA “up” and numbering from left to right:
>
> 1) V- / return / ground
> 2) Case
> 3) B+
> 4) ???
> 5) ???
> 6) ground
>
> Bob
>
> > On Apr 13, 2021, at 3:17 PM, Juerg Koegel <j.koegel5 at gmail.com> wrote:
> >
> > I am looking for data (PinOut, Power, Stability, Phase Noise, EFC )  for
> the 10MHz OCXO McCoy Electronics OSC92-51B.
> > Thanks for all information.
> >
> > Juerg
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