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7591

Information - Help 
ID = 3729
       
Country:
United States of America (USA)
Brand:
Tube type:  Beam Power Tube   Power/Output 
Identical to 7591
Similar Tubes
Other shape (e.g. bulb type):
  7591A
Other base:
  6GM5 ; 7868
First Source (s)
01.Feb.1960 : Electron Tube Registration List
Successor Tubes 6GM5   7868  
Base Octal (Int.Octal, IO) K8A, USA 1935
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.8 Ampere / Indirect / Specified voltage AC/DC
Description Beam power tube designed for use in Ultra-Linear audio amplifiers.
19W plate power dissipation, 450V. 
Tube prices 9 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Tube Lore (I)   
7591_corrected.png
7591: corrected version
Roland Langfeld
7591.png 7591: Bauer Wolfgang
Wolfgang Bauer
More ...
Just Qvigstad 		7591_data_a.png
7591: RCA Manual RC-23
Heinz Höger
More ...
Usage in Models 2= 1958?? ; 2= 1959? ; 3= 1960?? ; 2= 1960? ; 1= 1960 ; 2= 1961?? ; 13= 1961? ; 2= 1961 ; 1= 1962?? ; 12= 1962? ; 6= 1962 ; 1= 1963?? ; 2= 1963? ; 5= 1963 ; 2= 1964? ; 1= 1964 ; 5= 1965?? ; 3= 1965? ; 5= 1965 ; 1= 1966? ; 1= 1966 ; 1= 1967?? ; 1= 1967 ; 1= 1975??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):75

Collection of

David Erali (USA)
Wolfgang Bauer (A)
Bruce Morgenstern (CDN)
 
rca_7591_front.jpg

7591
 
Forum contributions about this tube
7591
Threads: 2 | Posts: 2
Hits: 794     Replies: 0
Westinghouse introduces the 7591 tube, Audio Magazine 4-60
Rich Post
23.Dec.21 		  1
Westinghouse introduces the 7591 tube, Audio Magazine 4-60 

Source: Audio magazine April 1960

Westinghouse Audio Tubes.

7591 beam-power pentodes available from Westinghouse electronic tube division are audio-frequency power-output tubes specifically for use in audio amplifiers capable of high power output and low distortion. In push-pull applications they will deliver 45 watts with total harmonic distortion not exceeding 1.5 per cent. Operating conditions for this level of performance are: plate voltage 450; screen voltage 400; grid No.1 voltage -21; Maximum signal plate current, 72 mA per tube; maximum signal screen current, 15.0 mA per tube; Effective plate-to-plate load impedance, 6600 ohms. The 7591 operates at a rated screen dissipation of 3.3 watts but screen dissipation of 6.0 watts is permissible during periods of maximum input of speech and music signals. For more information, write Electronic Tube Division, Westinghouse Electric Corporation, PO Box 284, Elmira, NY.
 
Hits: 3608     Replies: 0
7591 (7591)
Michel Deluz
19.Dec.11 		  1
7591 (7591) 

 En montage audio en push-pull, le tube 7591 est capable de délivrer une puissance respectable avec une fidélité remarquable. Il est en outre conçu pour apporter le moins de distorsions possible à l'étage déphaseur qui précède ; non seulement sa Rg1max peut aller, en polarisation automatique, jusqu'à 1MΩ, mais aussi la tension entre le filament et la cathode qui peut aller jusqu'à 200v permet de le relier en direct (sans condensateur) à l'étage précédent. 

Michel Deluz
 
7591
End of forum contributions about this tube
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