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GB-5963

Information - Help 
ID = 81293
       
Country:
United States of America (USA)
Brand: Sylvania (Hygrade, GTE, Nilco); Emporium (PA)
Tube type:  Double Triode 
Identical to GB-5963 = 5963
Similar Tubes
Other characteristic (electr. data):
  12AU7
First Source (s)
05.Jul.1950 : Tube Lore (II) Page 100

Base Noval, 9 pin miniature (USA pico-9) B9A
Was used by Technology / Measurement
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Parallel, (AC/DC)
Description

It is a 12AU7 with improved "N18" nickel cathode. Computer-related, not intended for analog amplifiers due to noise, microphonics or current balance. The GB stands for Gold Brand. 

 
Information source Tube Lore (I)   Page 60
 
20200314_221655.jpg
GB-5963: RMG
Robert Gillespie

 

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