6688
The 6688 (European equivalent E180F) is a miniature pentode with a B9A (Noval) miniature 9-pin base.
It is used in:
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80P probe internal view
The 6688 (European equivalent E180F) is a miniature pentode with a B9A (Noval) miniature 9-pin base.
It is used in:
80P probe internal view