[time-nuts] 10811 warmup

Normand Martel martelno at yahoo.com
Mon Jan 22 03:24:21 UTC 2007


It's bizarre..

The oscillator is some kind of Colpitts but with coils
instead of capacitors in the feedback path.

(i don't call it a Hartley, bcause Hartley's use a
SINGLE tapped inductor.)

73 de Normand VE2UM

--- Dr Bruce Griffiths <bruce.griffiths at xtra.co.nz>
wrote:

> Hal Murray wrote:
> >> Is it okay to power up the main assembly once it
> is removed from the
> >> outer shell / insulation? 
> >>     
> >
> > Lots of info here:
> >  
>
http://www.hparchive.com/Manuals/HP-10811AB-Manual.pdf
> >
> > I think I saw a warning about that, but maybe it
> was something else.
> >
> >
> >   
> It is OK to power up the oscillator and output
> amplifier, but the oven 
> circuit should not be powered up.
> 
> Bruce
> 
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