Scott wrote:

AJ Lake wrote:
.

I'm sure that our (US) military protects for EMP, but I doubt it is by
using tube equipment. Likely something more modern. Fancy Shielding?
Perhaps you know the technology currently used?

Nope, no idea. When I was in the Air Force working on aircraft comm
radio equipment, "they" told us if a nuke went off, our radios would
most likely not work.

What was the plan with no radios operational?
Please tell me there was a plan...

I don't think fancy shielding would work since
all radios I know of have a hole in the shield where RF and EMP can
enter. It used to be called the antenna port. Not sure what they call
it in "modern" equipment...

I suppose any modern EMP US military countermeasures would be
classified. Maybe Bob in London can tell us...

When I was still in the USAF, we had our EC-135 and RC-135 aircraft that
still had some tube type radios on at least HF and UHF bands, ie 618-T
and ARC-34...but...they also had modern radios such as the ARC-190 HF
set.

I was working in the manufacturing of new tube type military equipment
(such as the APS 94 side looking radar) into the late 60s. I left the
electronics industry in 68 for an unrelated field and never kept up on
military gear after that.

I loved the ARC-190 (Collins). It was a nice radio to use and
work on. Still see them installed on at least National Guard KC-135s
when I get aboard at airshows.

Collins was always nice gear, either in or out of a military skin.