heptode
nounUK /ˈhɛp.təʊd/ · US /ˈhɛpˌtoʊd/
Etymology From hept- + -ode.
1
A compound thermionic valve containing a triode and tetrode; was used in superheterodyne radio receivers.
- Related terms
- pentagrid converter
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.