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6AF4B

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ID = 55352
       
Country:
Worldwide
Brand: Common type Worldwide tube/semicond.
Tube type:  Triode, vacuum   UHF 
Identical to 6AF4B
Similar Tubes
Normally replaceable-slightly different:
  6AF4A
Base Miniatur-7-Pin-Base B7G, USA 1940
Filament Vf 6.3 Volts / If 0.225 Ampere / Indirect / Specified voltage AC/DC
Description Medium-mu triode for TV reception.
Also specified for an output power of 160mW as an oscillator or transmitting tube.(Ediswan 1970).

The differences between the A, B and basic types of this series are not apparent. Tubes bear the 6AF4A/B mark. The differences must be small. 

Information source - - -   
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6af4a_so~~1.png 6AF4B: RCA Reference Book 1968
Anonymous 10 Collector

Just Qvigstad
Usage in Models 13= 1958 ; 7= 1959? ; 41= 1959
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):61
 
Forum contributions about this tube
6AF4B
Threads: 1 | Posts: 1
Hits: 1987     Replies: 0
6AF4B, 6AF4 and 6AF4A
Michael Watterson
04.Nov.13 		  1
6AF4B, 6AF4 and 6AF4A 

According to guest/visitor Joe Perkins (USA) the differnces are the height of the envelope,  The "A" suffix shorter (about 36 mm) and the B or no suffix version about 48mm high.
 
6AF4B
End of forum contributions about this tube
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