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12GN7A

Information - Help 
ID = 5412
       
 
   
Tube type:  Vacuum Pentode 
Identical to 12GN7A
Similar Tubes
Normally replaceable-slightly different:
  12HG7
Heater different:
  12GN7
First Source (s)
19.Oct.1964 : Electron Tube Registration List

Base Noval, 9 pin miniature (USA pico-9) B9A
Was used by Radio/TV-reception etc.
Filament Vf 12.6 Volts / If 0.26 Ampere / Indirect / Parallel, (AC/DC)
Description

Frame grid pentode for applications as high-Gm video amplifier. Controlled warm up time for heater string connection. Center tap allows heater operation at 6.3 volts, 600 milliamps.

 
Text in other languages (may differ)
Tube prices 1 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
- - Manufacturers Literature   
 
12gn7a~~1.jpg
12GN7A: common type USA
Georges Werts

 
12gn7a_basediagram.png
12GN7A: 12GN7A
Vitor Oliveira

 
12gn7a_techdat01.png
12GN7A: RCA Tube Manual
Peter Hoddow


from Just Qvigstad

Usage in Models 3= 1970?? ; 1= 1972

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4


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