Source: wikibot/12bv7
= 12BV7
{wiki=12BV7}
The 12BV7 is a type of vacuum tube that was primarily used in audio applications and other electronic devices in the mid-20th century. It is part of the family of dual triode tubes and was designed to operate with a 12-volt heater. The "12" in its name indicates the heater voltage, and "BV" refers to the specific characteristics of the tube.