[time-nuts] Symmetricom OCXO ID

[John Petrich]

I know this is one of those questions:  I am trying to identify the voltage
requirements for the double oven heater elements to an HP 10811D (type)OCXO
from a Symmetricom GPS receiver.   The HP s/n is 3505A22776.  Both HP and
Symmetricom support cannot provide any data.  The obvious heater leads
measure 43K ohms rather than the typical HP specified cold 43 ohm reading.
Does anyone know the proper heater voltages and, better yet, the color
coding?

 

Thank you in advance,

John Petrich, W7FU

Seattle, WA