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History of the manufacturer  

Royal Tube Co.; Pawtucket, RI

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Name: Royal Tube Co.; Pawtucket, RI    (USA)  
Abbreviation: royal1
Products: Brand

Royal Tube Co.
Pawtucket, Rhode Island

Box for type 6F6G tube has been located. This brand was used by the Triad Manufacturing Co Inc.


This manufacturer was suggested by Fin Stewart.


Further details for this manufacturer by the members (rmfiorg):

Evening News Dec 6th 1934tbn_theeveningnewsdecember6_1934.jpg
Evening News January 24, 1935tbn_theeveningnewsjanuary24_1935.jpg