Olin Lathrop wrote: > Brent Brown wrote: > > I've checked and double checked that my two primary windings are > > wired in parallel > > Oops. No, (checking again), that's right... 2 x 115V windings in parallel, operating on 115V. This is for use in the US. Checked phasing of the windings too. In series would be for 230V operation. Incidentally I use a completely different transformer (single 230V primary) when I build this for 230V operation as they are very much cheaper. -- Brent Brown, Electronic Design Solutions 16 English Street, St Andrews, Hamilton 3200, New Zealand Ph: +64 7 849 0069 Fax: +64 7 849 0071 Cell: 027 433 4069 eMail: brent.brown@clear.net.nz -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist