Coincidentally, there were vacuum tubes with dual grids for mixer and AGC applic... | Hacker News

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		analog31 45 days ago \| parent \| context \| favorite \| on: Doin' It with a 555: One Chip to Rule Them All Coincidentally, there were vacuum tubes with dual grids for mixer and AGC applications.

buescher 45 days ago [–]

And there's someone with a stash of those too. Dual-gate mosfets are one of the ways you know something's been in the back catalog way too long.

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