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National Union Radio Tube Type 50L6GT With Carton, by National Union, New Jersey, c. 1941
Inventory Number: 47236
Number of documents: 3
Document Type: Miscellaneous Note
Document Heading: Inscription
Text:
"NATIONAL / UNION / Lease/Lend Valve, type 50L6 GT price / including Purchase Tax 12/10, sold subject to the / Radio Valve (Maximum Price) Order S.R. & O. Number / 1934 to 1942. / RADIO CORP. / NEWARK, N.J. U.S.A." printed on exterior surface of carton side. "50L6 / GT" printed on exterior surface of bulb.
Document Type: Miscellaneous Note
Document Heading: Technical Details
Text:
The 50L6GT was an audio beam tetrode output valve designed for use in AC/DC equipment such as universal voltage radio receivers and television sets. In single ended use an output of 5 Watts was possible with an anode load of 2400 Ohms. If used in push pull class AB1 a pair of KT71's could generate 11.5 Watts at 4.5% distortion.
Document Type: Miscellaneous Note
Document Heading: Historical Background - Lend Lease Agreement
Text:
This tube was produced as part of the Lend-Lease agreement between the USA and Great Britain. This program began in 1941 and continued throughout WWII. It was a program that allowed the United States to provide the Allied Powers with war material without becoming directly involved in the war, and was officially implemented by the Lend-Lease Act of March 1941. However, an important part of this agreement was repayment and Britain's debt was over £1 billion (£1,075 million). The final payment owed by Britain at the end of 2006 was to the amount of $83.3 million (£42.5 million) and was made on 29 December 2006, the last working day of the year. After this final payment Britain's Economic Secretary, Ed Balls, formally thanked the US for its wartime support.
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