[Milsurplus] Clandestine RBO receivers?

[Kenneth G. Gordon]

On 10 Jun 2021 at 18:33, howard holden wrote:

>     The RBO aboard the USS Ling SS-297 also has those holes on bottom and the latch on top. No 
>     idea of why, no cover associated with them . Maybe to keep the dial from upsetting night 
>     vision?

That's the reason **I** had thought of...

I had thought of, and immediately dismissed, the "radiation" angle.

The receivers of the period weren't sensitive enough to detect that miniscule amount of 
radiation. Besides, Scott had determined that the radiation levels were well under spec.

Ken W7EKB