"john jardine"


NB: your Pics #3 and #4, look to have that characteristic non linear
crossover distortion seen at the secondaries of low voltage step down
transformers ??.


** Entirely due to magnetising current peaks in the primary occurring 90
degrees later than the voltage peaks.

These current peaks briefly drop the effective primary voltage and create
the waveform distortion seen at the secondary.

The effect is pretty much limited to small e-core jobs - less than 50VA.



...... Phil