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Heptode vs Heptade - What's the difference?

heptode | heptade |

As nouns the difference between heptode and heptade

is that heptode is a compound thermionic valve containing a triode and tetrode; was used in superheterodyne radio receivers while heptade is a sum or group of seven.

heptode

English

Noun

(head)
  • a compound thermionic valve containing a triode and tetrode; was used in superheterodyne radio receivers

    • See also

    * pentagrid converter

    heptade

    English

    Noun

    (en noun)
  • A sum or group of seven.