Names, devices, companies from the past. I loved it all.
On my first Navy ship, I worked on a number of non-solid state radios, AN/URC-9. All tubes. 5654, 8532, 5670 mostly. Mechanically tuned, and took over two hours (if you were god at it) to align them. 50’s technology in the early 80’s. Now I work with that redio’s successor, and AN/WSC-3. 70’s technology in the 21st century.