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Assorted Components For T1154 And R1155A In Wooden Chest, England, 1940s
Inventory Number: 13044
Number of documents: 1
Document Type: Miscellaneous Note
Document Heading: Historical Background
Text:
The T1154 Transmitter and R1155 Receiver were based on a Marconi design from the 1930s and modified for RAF bomber and Coastal Command operations. This first entered operational use in 1940 and more than 80,000 equipment sets were manufactured during the war years. The various designs were spread to five other radio firms, including Ekco, Plessy, Philips, and the Gramophone Co. (EMI), but were overseen by the Marconi Company. The R1155 was a combined communication and direction-finding receiver; it was commonly used with the T1154 Transmitter, which provided a number of spot frequencies. It was provided with a headphones output only and was powered externally by the aircraft electrical systems. The equipment continued in service on many civil aircraft, and the receiver was popular with radio enthusiasts & hams after the war.
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