Valves
UPTIN 466.       Diode valve 6AL5
UPTIN 467.       Diode valve 6H6
UPTIN 468.       Triode valve ECC 82
UPTIN 469.       Triode valve 6J5
UPTIN 470.       Tetrode valve
UPTIN 471.       Pentode valve
UPTIN 472.       Thyratron valve
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