"John Woodgate" wrote: > Rich Nute wrote: > >In the mid-fifties, GE came out with a > >transformerless 17-inch TV. One side of > >the power line was tied to the chassis > >(2-wire plug back in those days). The > >only protection was the plastic knob on > >the shafts of the various controls. When > >servicing this TV, you quickly learned > >never to touch the chassis! > > We had transformerless sets earlier in Europe, around 1951 IIRC, because > we could get at least 200 V B-plus (see, I can speak American!) from a > half-wave rectifier.
Wasn't there a transformerless set accomplished by caps somewhere in the distant past? - Doug McKean ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"
