A supply

American  

noun

Electronics.

1. a battery or other source of power for heating the filament or cathode heater of an electron tube.

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Example Sentences

Miran’s argument rests on a simple but often neglected insight, which is that regulation is a supply‑side policy.

From Barron's

It is a supply issue, shaped by land‑use rules that choke housing construction, permitting regimes that delay projects, and regulatory barriers that deter new firms from forming and competing effectively.

From Barron's

Despite rising geopolitical tensions in January, however, the global oil market is still expected to see a supply surplus this year.

From MarketWatch

Despite all the developments in January, however, the global oil market is still expected to see a supply surplus this year.

From MarketWatch

“But I’ve got a supply saved. Your father and I will do without tea, but it seems unkind to ask guests to. I think of Simon. Every night I pray that some kind soul has wrapped my duck in a blanket with a hot cuppa.”

From Literature