Reduced inductor to 10 turns of 1.3mm Changed Ct to 1n5 Vout into load =3D 5.01 Been on for a few minutes, FET very slightly warm, nothing else Will have a tidy up and then do a few measurements / photos ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2016.0.7998 / Virus Database: 4756/13867 - Release Date: 01/30/17 --=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 .