You are assuming that the choking impedance is what the transmission line used for a winding sees; THAT is always whatever impedance the SWR presents. The 2500 Ohm choking impedance is only seen by current on the outside of the cable, a good deal less power (thus voltage) than what is inside. It need only be insulated enough to prevent arcing from output to adjacent turns.
Cheers! Cortland KA5S On 12/8/201116:43 n09e wrote: > Imagine choke constructed with RG174 looped through a toroid 10 times. Also > imagine output resitstance 2500 Ohms and 100W power. > > On input, RG174 has a peak voltage of 100V. No problem. > > On output, RG174 has a peak voltage of 1000V. It would melt in seconds. > > What is wrong here? Assumptions? > > Ignacy ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
