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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: RE: Mush (slow PS) posted by sony6060 on August 23, 2014 at 04:36:24:
"I prefer 30uF to 4HY choke (50 ohms or less) and 100uF. Very fast recovery power supply with good regulation."Chokes act like current sources. When the load Z falls rapidly - as happens during amplifier current peaks - more of the choke's fixed current output is diverted into the amplifier, with less available to replenish the capacitor. This action allows the capacitor to more fully discharge into the amplifier during the peak than if the choke were not present. Put another way, the choke degrades dynamic regulation and makes it more likely the capacitor will be drained on peaks. If the supply as a whole works well, it is only because the final capacitor is sufficiently large to remain adequately charged during peaks even when replenishment is reduced by the choke.
Edits: 08/23/14 08/23/14
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