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History of the manufacturer  

Alden, Inc.; (where?)

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Name: Alden, Inc.; (where?)    (USA)  
Abbreviation: alden
Products: Model types
Summary:

Alden, Inc. - where?

History:
?


Some models:
Country Year Name 1st Tube Notes
USA  50 1525 12SA7GT   
USA  50 1561 7Q7   
USA  49 1562 6SB7Y  Diode Rectifier. 
USA  49 1600 12SA7   
USA  49 1601 12SA7   
USA  50 1755 1R5   
USA  50 1756 1R5   
USA  50 1757 1R5   
USA  50 1758 1R5   
USA  51 1800 1R5   
USA  51 1801 1R5   
USA  51 1802 1R5   

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