Especially in the case of vacuum tube electronics ... it’s almost impossible to find dead air on the AM dial of this radio. If you’ve never had to make fine adjustments to a receiver ...

and it was also used in everything from radios to televisions to the first computers. The audion, or triode, at the heart of the vacuum tube is what the transistor was built to replace.

Definitely not in the meme category, though, is this overkill vacuum tube 555 timer. It comes to us via [David Lovett], aka [Usagi Electric], who has lately caught the “hollow state ...