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Tube Substitutions for:
6F31
Vacuum Pentode
Type
Substitutes
Base Diagram
6F31
5749
,
6660
,
6AU6
,
6AU6A
,
6BA6W
,
6BA6WA
,
6BD6
,
6BZ6§
,
6CG6
,
7496
,
7543
,
6BA6
Notes:
§ - May not work in all circuits
Web References
6F31 @ RadioMuseum.org
Type
6F31
Vacuum Pentode
MECHANICAL DATA
Basing
7BK
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