On 2013-08-22 6:47 PM, veegee wrote: > On 2013-08-22 4:40 PM, Bob Blick wrote: >> Hi Veegee, >> >> The laminations on a microwave oven transformer are welded together >> [...] > > Is this what you mean by "interleaved"? > [...] Update: I measured 75W unloaded before the cut, and ~80W unloaded after cutting, inserting huge copper secondary, and clamping shut in a bench vise. Tightening vise to increase clamping force shows decreasing unloaded power draw. Of course, need to measure loaded efficiency with varying clamping force. So far it looks okay, might be worth welding it where the original weld was. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .