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1662

Information - Help 
ID = 86224
       
Country:
United States of America (USA)
Brand: RCA (RCA Victor Co. Inc.); New York (NY)
Tube type:  Vacuum Pentode   Power/Output 
  Ca. 1925 up to 1945 very rare. ***
Identical to 1662
Similar Tubes
Other class quality (otherwise equal):
  3A4 ; DL93
First Source (s)
1944 : Tube Lore (I)
Predecessor Tubes 3A4  

Base Miniatur-7-Pin-Base B7G, USA 1940
Was used by Military and/or Government
Filament Vf 2.8 Volts / If 0.1 Ampere / Direct / Battery =
Description

The RCA 1662 is a 3A4 of special construction with a directional getter and getter shield for lower noise. Per Tube Lore (Ludwell Sibley), these were made for the Navy Ordinance Lab in two production runs in 1944 and 1951. [Source: Jim Cross, TCA]

 
Information source Tube Lore (I)   


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