[willhopkins]

It hadn't occurred to me to check that. It's nice when shows take the time to get it right, or mostly so.

[jgrahamc]

It's also nice that the radio amateur who did this, G3YXZ, used period equipment as well. He was using a circa 1900 British Post Office Morse key.

[grandalf]

Don't underestimate the more modern equipment... I just ordered one of these: http://www.i2rtf.com/html/pearl.html