New DEC museum entry :D (not the breaker sub-thread)
julesrichardsonuk at yahoo.co.uk
Thu Feb 22 18:06:17 CST 2007
Adrian Graham wrote:
> Well, tonight I stripped the PSU down and there aren't any filtering caps,
> at least not the X type ones I'm familiar with. Instead the mains cable
> plugs into a honking big sealed tin box that terminates in a 2 inch earth
> wire and 2 spade connectors that the live and neutral hook up to. Said earth
> wire is bolted to the chassis and joined to a similar bolt holding the fan
> to the case.
> Anyone seen something like this 'mains plug in a sealed tin box' arrangement
> before? The thing's got to be 4 or 5 inches by 2.5 inches so whatever goes
> on in there is anyone's guess.
Yeah, it'll contain class X or Y filter caps :-) Often the schematic for
what's inside the filter is printed on its case, but this one may well have
never had one, or it's fallen off.
It'll just be the same sort of arrangement as normally seen within a PSU, only
in a screened casing.
More information about the cctech