Signalling device

Details Signalling device Signalling device

H - Electricity

05

B

315/1

H05B 41/34 (2006.01)

Patent

CA 1071292

ABSTRACT OF THE DISCLOSURE A portable signalling unit includes a gas discharge tube and a continuously cycling drive circuit which produces successive discharges through the tube, a control instument- ality being provided whereby the continuously cycling of the circuit may be overriden and brought under the control of a programming device which cause the discharges through the tube to follow a continuously repeating pattern. The pattern may represent the Morse code for SOS or any other desired signal.

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