B9D base

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The 9-pin B9D (Magnoval) tube base is a larger variant of the B9A (Noval) miniature 9-pin base used for higher-powered tubes such as the 8608/EL5070.

See also

• miniature B7G 7-pin base
• B9A (Noval) miniature 9-pin base

Links

• https://en.wikipedia.org/wiki/Tube_socket#Other_socket_styles

Magnoval B9D base (IEC 67-I-36a) 9 pins with 1.27 mm diameter in a 17.45 mm pin circle diameter arc, e.g. EL503, EL509, PD500, etc. - not to be confused with...