[Milsurplus] myster box

[J. Forster]

My interest only extends to ASB-5s... and I have really no good reason for even
being interested in that.

-John

Unserviceable but Repairable wrote:

> Jack (& John)
>
> Ya know I bet it is an early ASB RX.  That 500mc thing was built by
> RCA as was ARB.
>
> Have ASB-7 here w. 446 lighthouse (larry) tubes.  And it was that
> 2nd generation ASB rx that caused all the 446s to appear in surplus
>
> Then the Navy had some kinda spectrum-analysis set that pre-dated the
> APR-1/4 & cud be that.
>
> How's that right-angle 'coffee grinder' dial calibrated?
>
>   Marty