>
>Marv says:
>
>>One interesting benefit of a switching plate supply is the elimination
>>of excessive "glitch" energy... and just think of the fun you could have
>>pointing out the .1uf / 10KV plate supply filter cap to visitors!
>
>
>In order to get the capacitor that low, surely you would need a loop
>bandwidth in the switcher high enough to prevent the cap discharging when
>the load is modulated at syllabic rate with a voice signal? That would mean
>out to say 5 kHz - perhaps higher, because of having a low plate supply
>impedance for the the frequencies represented in the plate current by beats
>between IM products?
>
>Anybody out there an expert on switchers? My experience is that they cause
>hash, and when something goes wrong, it's a chain reaction with every
>semiconductor in sight being taken out by the domino effect!
>
? agreed. A switcher supply of this size might turn out to be akin to
Pandora's box. .
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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