Paperback booklet, yellow cover, 60 pages, text and diagrams on the principals of the magneto, First published Jan 1942The Aircraft Magneto, Electrical components division Bendix Corporation.manual, magneto manual, text book, morrison

This manual telephone exchange console is an important piece of equipment which provided the most efficient method of long distance communications in the 1950's to the 1980's. Communications were critical, not only for the regional Hospital, but also for large construction sites i.e. the Kiewa Hydro Scheme, especially if they are in dense rugged mountainous regions. The degree of Occupation Health and Welfare on industrial sites were at a bare minimum compared to the work scene after the 1980's.This telephone exchange console is highly significant to both the Kiewa Valley and Mount Beauty region because it was so important in the communications field relating to operational safety and work related controls. The success of any large undertaken relies heavily upon good communications. In the hospital this method of communications is still used i.e. patient to ward station. This flag system link a patient's room to the controlling nursing station. Identification of the patient needing help is crucial for swift action from the available medical staff. Similarly in large construction sites such as the Kiewa Hydro Scheme, successful instant communications was also essential. This switchboard required a 50 volt supply to successfully operate and was in use when both telecommunications and postal were under the one Federal Government carrier i.e. The Post Master General. A benefit with a line communication system (such as the one that fed this console was that interference from atmospheric conditions did not impede the connection.This console telephone switchboard (manual) unit has a shutter operation (precursor to the light indicator) to identify the caller to the telephone switchboard operator. This switchboard has a ten point indication shutter system allowing the operator to clearly identify where the caller is located. The console has a 44 connection point holes with their configurations in a triangular shape. The shutters are held closed by a small lever at the top which is opened by a small electrical charge from the incoming call. The operator uses a wind up handle to power a magneto connector(handle on the console's right side). The telephone hand set is located on the left side of the console. sec vic kiewa hydro scheme, alternate energy supplies, alpine population growth and communications

created by the British Thomson-Houston during the interwar years. The manual relates to magnetos they produce for aircraft engines.aircraft magnetos, british thomson-houston

Used to communicate with the local telephone exchange and for connection to other subscribers. The introduction of automatic exchanges saw the their demise. This phone was used in the family home of the donor at Caboolture (aboriginal for carpet snake) during the 1940s and 1950s.A magneto telephone for communication with a manual telephone exchange. The handle on the right hand side, which was turned to rotate the magneto to call the exchange - ask operator for a number and then to be connected. Telephone enclosed in a specially designed box for mounting on the wall. There was a bell on top which rang when the magneto ringer at the exchange was turned. Fitted with a carbon microphone mounted on the front of the box for the transmission of the spoken word and an electro- magnet. A receiver which hangs on the left hand side on a hook. The hook acts as the on and off switch to answer the call and to switch on the battery to provide power for the receiver and energize the transmitter. There is an angled ledge for writing any messages. There is no battery. The circuit for the phone is on the inside of the door to the interior of the phone. pHone is type CDA116 - PMG Registered - Ericsson.communication, telephonic