Chuck Harris wrote:

The Swan design was very competent, but very much driven by cost.
That said, it is sort of odd that they used the fancy, but expensive,
7360 balanced modulator tube.

That's the sheet-beam tube? Those things actually reduced the cost of
a design because they eliminated a whole slew of parts. Later on there
were a bunch of cheap ones designed for chroma detectors in TV sets, but
at first there was only one.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."