OT Don't read this crap, aka vacuum state

[William Donzelli]

> The compactron type tubes designed specifically for TV sets were
> as close as successful "integration" got, combining common
> adjacent stage active devices into one envelope,

Compactrons (at least none that I know of) are not integrated - each
function is pinned out individually. Something like the 6N6G is true
integration - one triode feeds another (they can not be used
individually).

> In hindsight, it seems pretty obvious why "high density" never
> caught on -- cathodes and filaments die, tubes were expensive.
> Packaging tubes is expensive.

Compactrons were cheaper to make. Less labor, better yields. In
TV production, Compactrons lowered costs due to less inventory and labor.

William Donzelli
aw288 at osfn.org