6BY8

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The 6BY8  (P/N 154-0414-00) is a diode-pentode vacuum tube with a B9A (Noval) miniature 9-pin base.

It is used in the 547 (V664).

Some instruments using part 6BY8

Instrument Manufacturer Class Model Description Introduced
547 Tektronix Oscilloscope 547 50 MHz oscilloscope 1964

Links

  • 6BY8 @ radiomuseum.org