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R.A.F. Henlow Signals Museum Exhibits

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Monitor_Crystal_Type_2=0320.jpg Monitor_Crystal_Type_4A_(Tropical)=0390.jpg

Morse_Creed_Keyboard_Perforator_9=0019.jpg Morse_Creed_Tape_Printer_1T=0014.jpg
Crystal Type 2
Crystal Type 4A (Tropical)
Buzzer Valve Type 2
Creed Keyboard Perforator 9
Creed Tape Printer 1T

Buzzer, Valve Type 2

This battery powered unit was used for instructional purposes in Morse signalling. It is designed so as to provide signals of variable pitch note and of adequate volume in up to 20 pairs of headsets. By coupling two units together, interfering signals can be produced. Sec/Ref 10A/10158.
Morse<br>Buzzer Valve Type 2

Morse Buzzer Valve Type 2 (Photograph Number 0248)

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