[time-nuts] The 10811 double oven mystery

[Richard (Rick) Karlquist]

On 4/8/2020 2:02 PM, Tom Holmes wrote:
> Then what was the purpose of the inner oven?
> 
> Tom Holmes, N8ZM
> 
> -----Original Message-----

The inner oven has a thermal gain around
1,000.  When my colleagues at HP proposed
to wrap a 2nd oven around it, I predicted
that the additional thermal gain due to
this oven would not be much, and they
proved me right by building it. and measuring
it.  It's raison d'etre is dealing with low
ambient temperatures.  Any thermal gain
improvement is just a bonus.  The
designers downplayed this bonus since it
wasn't anything to brag about.

Rick N6RK