[Milsurplus] questions re early Stabilized Master Oscillators

[J. Forster]

There is something to be said for a mechanical servo. The last setting is
retained even if the power is turned completely off.

Just like real core memory.

-John

===============


> Ray -
>
>    The 18Z-3 & 18Z-4 are equivalent to early ARC-58s -  the May 1 1958
> 18Z-4 manual shows the saturable reactor and has no newer schematics.
> See photo from that manual here:
> <http://www.hypertools.com/70H-13.jpg>
>
>    The 70H-13 PTO is the leftmost 40% of the schematic, in the dotted
> line box labeled MASTER OSCILLATOR.  SMO drive circuitry is shown to
> it's right.
>
>    Yow a servo-driven variable cap to correct an SMO?!?!
>
> 73
> Dave Ross    N7EPI