On Tue, 20 Apr 2010 07:22:33 +0100, Ian White GM3SEK wrote: >Obviously the answer will also depend on the quality of design and >construction, not only in the transformer but also in the rest of the >amplifier, because flux leakage is also affected by the external >connecting wires. For the lowest possible flux leakage, it is important >to minimize the physical size of the 'coupling loops' created by the >connecting wires, especially if the stray magnetic fields can also >interact with a steel chassis.
I never bothered to figure out why, but the first family of Crown audio power amps that used toroidal power transformers had BODACIOUS levels of leakage flux that could drive you NUTS in a live situation, when they coupled into line level audio circuits. We had to solve that by physically rotating them. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
