[mythtv-users] Why cant we make a STB?

[Simon Hobson]

Mike Perkins wrote:

>>FCC cert yes, but you can avoid the UL cert by using a UL approved
>>external power-supply.
>>
>Ugh. I dislike those things because they suck power 24/7. At least 
>with a proper built-in power supply you go down to standby power or 
>less when you're not sat in front of the box.

Err, in many designs, the internal supply still sucks power when 
off/standby (especially standby which isn't actually off). External 
supplies do not, contrary to popular belief, suck the same power 
whether you draw it or not - modern switch mode supplies tend to take 
very little when there is no load.

It's a complete myth that a (say) 60W power supply takes 60W from the 
mains when the load is less than that, or off altogether.

-- 
Simon Hobson

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