Steve,
I haven't measured idle current of the transformer so I will do that when I dig it out from long term storage. To be fair, even if it idles absorbing a 1kw, which I doubt, I only get maybe 8 hours max per week to "ham" so it's not such a big issue.?
The 3cw 30,000 uses 1kw on the filament alone, so wasted power is all relative:) .
I take your point on rerunning the spreadsheet at reduced voltage level, so I will do that.?
Thanks des?
