411 REFERENCE · Wiktionary
A battery
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Noun
en dated electronics A battery used to heat the filament or cathode heaters of electron tubes.1
Synonyms
en filament battery1
Related terms
en B battery
en C battery
Translations
battery to heat the filament of electron tube
Finnish: fi hehkuparisto
German: de Anodenbatterie f
References