Will Matney wrote:
>
>That's what I was remembering that they were actually regulating by
>using a ferro-resonant transformer (using a shunt). Without the shunt
>of course, you have a regular EI core, or close to it.
Another important difference is in the load it's designed for. In DC
terms, a magnetron is a diode. It has no control grid, so it needs a
current-limiting supply to prevent runaway damage.
This is completely the opposite of the constant-voltage supply that we
ideally need for conventional tubes. Even if we knock out the shunts,
we're still trying to use a transformer that was designed for a
fundamentally different kind of power supply... as well as being
designed for "maximum cheapness".
(Because of a line fault, my Internet connection will be intermittent
for the next few days.)
--
73 from Ian GM3SEK
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