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ID = 10499
Brand: Common type Worldwide tube/semicond.
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to CV138 = EF91 = 6AM6 = 6F12 = 8D3 = Z77 = 5A/160H = M2462-406
Similar Tubes
Normally replaceable-slightly different:
  5A/160K ; CV1955
Other class quality (otherwise equal):
  CV4014 ; M8083 ; S6F12
Other base and data slightly different:
  CV2000 ; CV4002
Predecessor Tubes SP61  
Successor Tubes 6P10  

Base Miniatur-7-Pin-Base B7G, USA 1940
Was used by Military and/or Government
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC
Tube prices 1 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
-- Original-techn. papers.   
CV138: FC
Frank Cuffe

More ...
CV138: ARRL Handbook 1972
Anonymous 10 Collector

CV138: Manufacturer's Literature
Emilio Ciardiello

More ...

from Just Qvigstad

Usage in Models 3= 1955?? ; 1= 1956? ; 1= 1957? ; 1= 1960?? ; 1= 1960 ; 1= 1965??

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):8

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