[Elecraft] Wall warts, et heat

[Randy Farmer]

I believe one powerful motivation for the outboard supply approach is 
that it exempts the manufacturer from having to put the entire 
assembly through the various safety and regulatory processes (UL, 
CSA, CE, etc.). He can instead put the regulatory burden on the 
subcontractor who furnishes the supply. This can save LOTS of money 
when bringing a new electronic product to market.

73...
Randy, W8FN

>    I continue to clench my teeth when I see "a neat little package that
>works fine, just plug the wall wart into the wall socket and enjoy the
>toy". That's a cheap, and somewhat dangerous way to avoid adding a bit
>of bulk, a far better power supply, a switch, and some ventilation to a
>toy or rig that someone will use for who knows how long.