Need Info: "LH Research" Power Supply

From: Dwight Elvey <>
Date: Tue Jul 6 21:44:33 1999 wrote:
> Be careful, I have seen switchers that looks almost like analog per
> your descriptions and few analog ones looks like complex switcher.
> Switchers: Only talltale item: solid ferrite core and small, tends
> to have copper band; switcher. Analog PSU tend to have soft iron
> lamites and bit heavy and tend to hum like a bee sometimes.
> Switchers sometimes squeal and usually quiet.
> Wizard

All true but low voltage outputs rarely have 350-450V electrolytics
hanging on them.
Received on Tue Jul 06 1999 - 21:44:33 BST

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