Historical information
Radio Telephone: Minuted during the war. It was approved in 1944 for State Electricity Commission of Victoria use only. It was completed by the end of 1946. Used by the State Electricity Commission of Victoria at Bogong during the construction of the Kiewa Hydro Electric Scheme to connect with head office in Melbourne. It allows one conversation at a time using traffic controls in an unusual system of radio telephone providing communication. At the time it was unique in Australia and installed by the S.E.C.V. technicians. It provided an unattended shortwave radio link between two ordinary telephone switchboards, connecting any of the S.E.C.V.'s internal lines with the telephone system at Bogong and the construction camps beyond. From Bogong, radio phones connect to the outpost stations on the High Plains far above the snow-line. In operation, the service is similar to a normal telephone system but dispenses with the physical connection of wires and poles between the main terminals.
Significance
Historical: This type of headphone was used by operators on the switchboards at Bogong, Mt Beauty or on one of the construction camps on the Kiewa Hydro Electric Scheme. The S.E.C.V. installed this unique system of communication to operate their branches especially at Bogong and beyond where the distance was great and often limited by the weather and terrain.
Physical description
Used for a transmitter radio or Radio Telephone as installed by the State Electricity Commission of Victoria
2 round ear pieces. Outside of each ear piece has the brand inscribed, 4 screws and 1 small piece of metal. The metal has 2 screws attaching the the cord that goes to the 'switchboard'. On opposite edges of the earpieces is a thick metal piece that curves up to which the curved metal headpiece is attached and therefore connecting the earpieces. Each earpiece has a cord hanging from the small metal piece of earphone. This cord joins and then continues as one to the end where there are 2 metal pins coming out of the soft cover.
Inscriptions & markings
'C-LR ST & C of Sydney'
