[time-nuts] Making a HP 10811 better

[ed breya]

One last thing regarding oil-filling. My previous comment was made 
picturing oil inside the oscillator block only - not outside, or 
between the outer parts - if there is a resistance wire heater (I 
think it's heated with Qs only on the 10811) it is held together with 
various tapes and adhesives that could soften or dissolve. Also, the 
insulation would not insulate very well of saturated with oil, and 
could possibly soften or break down somehow. I would not recommend 
dunking the whole thing in a vat of oil.

And one final, final note: If oil is somehow effectively contained in 
the oscillator block, then a void (bubble) of some sort, or an 
expansion facility or vent would be needed to relieve the pressure 
changes during warmup.  Otherwise, when started up, the expanding oil 
would have to either leak out, or deform (or damage) something. This 
would be equivalent to dramatically increasing barometric pressure, 
and certainly effect the oscillator frequency.

Ed