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A straight key style of telegraph key – model J-38, a key used by U.S. military during World War II, and frequently re-used by radio amateurs
A straight key style of telegraph key – model J-38, a key used by U.S. military during World War II, and frequently re-used by radio amateurs
a Wright Brothers telegraph key (missing its knob)
a Wright Brothers telegraph key (missing its knob)
A Morse Key from G. Hasler, Bern (1900) first used by Gotthard Railway
A Morse Key from G. Hasler, Bern (1900) first used by Gotthard Railway
Early "bug" telegraph key invented in 1913 by Weston Hadden
Early "bug" telegraph key invented in 1913 by Weston Hadden
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This Morse key was originally used by Gotthard railway, later by a shortwave radio amateur
This Morse key was originally used by Gotthard railway, later by a shortwave radio amateur
Single needle telegraph instrument
Single needle telegraph instrument
Telegraph key and sounder. The signal is "on" when the knob is pressed, and "off" when it is released. Length and timing of the dits and dahs are enti
Telegraph key and sounder. The signal is "on" when the knob is pressed, and "off" when it is released. Length and timing of the dits and dahs are entirely controlled by the telegraphist.
Morse code receiver that records on paper tape
Morse code receiver that records on paper tape