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L21DD

Information - Aide 
ID = 31764
       
Pays:
Royaume Uni
Fabricant: Mazda = Valve (Tube) brand GB (see also France)
Type:  LOCKED OFF PART (CODE 9) - see in Notes 
Identique à L21DD
Culot Europe 5-Pin , B5 (Eu O, F, O5A) 1928
Description

See L21/DD

 
Bibliographie Taschenbuch zum Röhren-Codex 1948/49   
Tube Tester Data Avo CT160
l21dd_pinout.png L21DD: From my schematic collection.
Pier Antonio Aluffi

Just Qvigstad 		l21dd_characteristics.png
L21DD: My schematic collection.
Pier Antonio Aluffi
 
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