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1659

Information - Help 
ID = 32145
       
Country:
United States of America (USA)
Brand: RCA (RCA Victor Co. Inc.); New York (NY)
Tube type:  Double Diode-Triode   Text 
Identical to 1659 = 101A_Boonton
Similar Tubes
Other class quality (otherwise equal):
  2A6 ; 535-A ; 535-B

Base 6-Pin-Base U6A, old, USA Top contact with a cap.
Was used by Technology / Measurement
Filament Vf 2.5 Volts / If 0.8 Ampere / Indirect
Description

Selected 2A6 for use in Boonton Q-meters.

The 1659 was further selected for use in the Boonton 260-A meter and was designated 535-A or 535-B.

 
Information source Tube Lore (I)   
 
boonton_535_a~~1.jpg
1659: RFJ
Roy Johnson

 
1659_so.png
1659: rtt
Michael Schlör

 

from Just Qvigstad


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