[Milsurplus] “Down Periscope” movie - equipment ID??

[Kenneth G. Gordon]

On 26 Jan 2021 at 11:43, Nick England wrote:

> 
> https://www.youtube.com/watch?v=zysOEUd1YwQ
> and 
> https://imgur.com/gallery/qowVxb1
> 
> What are the black face units in the center (with a VU meter?)

Those look to me like the preamp from the BC-610....BC-614? Something like that. The 
switch the actor is activating is labeled "Filter". Under the meter, it says, "w/o Noise". Further 
down it reads, "With Noise"

> On the left and right are UGM-8 teletype test sets and URM-25 signal generators.
> 
> Cheers 
> Nick
> --
> Nick England K4NYW
> www.navy-radio.com