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12B7ML

Information - Help 
ID = 9577
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to 12B7ML
Similar Tubes
Normally replaceable-slightly different:
  12B7
First Source (s)
07.Jul.1939 : Electron Tube Registration List 200

Base Loctal-8, B8G (Sylvania, 1938) (Codex=W)
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Parallel / series AC/DC
Description

Metal bulb, loctal base. RF pentode, remote cutoff.

 
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
 
12b7ml_so.png
12B7ML: ARRL Handbook 1972
Michael Schlör

 

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