Model:
E80L/6227
Brand:
Amperex, Holland
Classification:
Pentode
Model:
E81L/6686
Brand:
Amperex, Germany
Classification:
Pentode
Model:
E90F
Brand:
Philips
Classification:
Pentode
Model:
E90F
Brand:
Telefunken
Classification:
Pentode
Model:
EBF80
Brand:
Bentley
Classification:
Pentode
Model:
EBF89
Brand:
Mullard
Classification:
Pentode
Model:
EF36 (6J7)
Brand:
Mullard
Classification:
Pentode
Model:
EF37/CV358 (6J7)
Brand:
ITT
Classification:
Pentode