Showing EF70 and all of its variations. Other filters are hidden while viewing variations.
8 pins
Mullard diode-pentode with published amplifier characteristics; available documentation does not establish a sufficiently specific functional role for narrower classification.
8 pins - WIRE8 - Subminiature all-glass 8-wire lead family
Subminiature high-slope RF pentode with specialized suppressor-grid arrangement and internal suppressor diode for compact high-frequency circuitry.
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| Voltage - Pentode or Tetrode (with diode)Diode-PentodeDissimilar |
| 8 pins Mullard diode-pentode with published amplifier characteristics; available documentation does not establish a sufficiently specific functional role for narrower classification. | |||||||||||||||||
| Voltage - Pentode High Frequency (single)Pentode |
| 8 pins - WIRE8 - Subminiature all-glass 8-wire lead family Subminiature high-slope RF pentode with specialized suppressor-grid arrangement and internal suppressor diode for compact high-frequency circuitry. |