Vintage R-68 Radio Telegraph Practice Set (KOB) from WWII (Morse Code)

Good condition

Please see all photos as they form part of the description

Can not test

With the evolution of wireless and its use of International Morse requiring the reproducer to work with tones indicating "dots and dashes" rather than "clicks and spaces" required for American Morse, some of the later KOB (Key On Board) units were also built with an electrically operated buzzer rather than the sounder. The buzzer allowed producing the "dots and dashes" of International Morse. Granted, they sounded a little "rough" but then so did the spark transmitters of early wireless days. The buzzer type KOBs were traditionally used for learning or practicing the code although it was possible to interconnect two or more sets for local wire communications. However, most were interconnected and used in "radio schools" and military radio schools for classroom International Morse send-receive education. KOB-type buzzer practice code sets were popular from the WWI era up to the 1950s. The metal tag between the key and buzzer shows International Morse Code. The R-68 shown is probably from the WWII-era.  -68

Radio Telegraph Practice Set (KOB)

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