[Premium-Rx] Astro Communcation Labs - Receiver SR-502-12B

[Paul and Julie Nell]

Anyone out there have information, components, schematic or receiver for Astro Communication Labs SR-502B-12. Not much on the web of any value that I could discover. This is an HF communications receiver with a tape type frequency readout. I think "ACL" was a spin-off of Watkins Johnson. The receiver section is on the right side, with power supply, If and audio components in the center, and the left side contained a spectrum type display, or digital frequency display. I would guess about early 70's vintage. Any leads or assistance is appreciated.

Thanks,
Paul