Browse Items (2 total)

  • Tags: communication

COMM 8.001.tif
Ladies operating a single-current Morse key. Note the 'sounder' backed by a reflecting device to localise the sound. In front of the key can be seen instruments for adjusting the signals and a galvanometer which indicates the presence or otherwise of…

COMM 8.024.tif
This photo shows a repeater bypassing the cable laying out gear prior to being laid from CS Mercury.
Output Formats

atom, dcmes-xml, json, omeka-xml, rss2