19 Dec
2007
19 Dec
'07
6:44 p.m.
Jonathan Hutchins [email protected] wrote: During the 60's & 70's, black and yellow were used for in-home wall warts that provided power to things like Princess Phones with light-up dials. Eventually a bad batch of these caused a number of house fires, and the system was discontinued, made unnecessary as solid state technology needed less current and could take power off the line voltage.
Now that you mention it, I remember the recall on that batch of transformers. That's been a long time ago.