The museum is fortunate to have working telegraph instruments in operation, allowing visitors to experience the sights and sounds of a 1920s telegraph station for themselves. In 1925 automation arrived in the form of the Regenerator System (Regen). Signals were received, strengthened and sent on, or ‘regenerated’, automatically. A message could travel the same route in under one second, and using only one operator. Our instruments have been set up to demonstrate duplex working, showing how messages were sent between London and the Azores. The working equipment includes keyboard perforators, automatic transmitters, magnifiers, fork relays, interpolators, synchronisers, siphon recorders, and direct printers.