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7AD7

Information - Help 
ID = 5121
       
 
   
Tube type:  Beam Power Tube   Power/Output 
Identical to 7AD7
Similar Tubes
Different maximum ratings:
  6145
First Source (s)
02.Apr.1947 : Electron Tube Registration List
Predecessor Tubes 6AG7  
Successor Tubes 6145  

Base Octal (Int.Octal, IO) K8A, USA 1935
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.6 Ampere / Indirect / Parallel, (AC/DC)
Tube prices 1 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
  7ad7.png
  7AD7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Michael Schlör
 
7ad7_001.jpg
7AD7: O.F.
Otto Frosinn

 
lo6_g.gif
7AD7: RTT Schwandt
Günther Stabe † 19.8.20

 
7ad7_rca_data_01.png
7AD7: Original data sheet
Otto Galli


from Just Qvigstad

Usage in Models 1= 1948 ; 2= 1950?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3


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