[Milsurplus] Service life (was Collins Book

[Nick England]

Also still in use today at WWVB, Several AN/FRT-72 LF transmitters
originally installed at Navy comm stations in the mid-60's and then
transferred to WWV in the 90's.

On Sun, Nov 27, 2011 at 8:25 AM, Nick England <navy.radio at gmail.com> wrote:
> Single individual piece of equipment -
> Several AN/FRT-39 (TMC GPT-10K) and AN/FRT-40 (TMC GPT-40K)
> transmitters installed at WWV in the mid-60's and still on the air or
> running as hot backups.
> Gummint service rather than military, so maybe that doesn't count.
>