Further to the CE618 question (*)--
(1) I change my bet about the electrical equipment. The New South Wales 80-class, built at about the same time, had Mitsubishi traction alternators and traction motors, so, if asked to bet NOW, that's what I'd guess the CE618 had.
(2) The Locopage WWWebsite, which used to have very detailed write-ups of Australian diesel locomotive classes... has moved and shrunk. The current URL is
http://users.cdi.com.au/~johnc/lp2.html
and the technical details on each class have disappeared. Apparently they are in a "downloadable database" (mentioned on the intro page), but it downloads in a format my computer doesn't know how to open.
(3) The Australian railfan magazine "Motive Power" that I mentioned... Combines an "Extra 2200 South"-analogue news and roster update with lots of color photos, a model railroading section, over the years some technical articles... I couldn't, just now, find a recent issue (my books etc have not gotten reorganized from the move yet!), but if I turn one up in the next few days I will post their address. (Australia must have more railfans per capita than North America does: it seems to support a number of railfan magazines. "Motive Power" is the one specializing on the current locomotive scene, but technical detail is only in occasional articles-- not every issue-- and I got tired of paying for pages and pages of glossy photos.)
(*) For those not in the know: the CE618 was a diesel hood unit with a 16-251 engine rated at 2400 hp (= roughly 1800 kw), built (by Commonwealth Engineering) in 1978 for the narrow (3'6") gauge lines of the Western Australian Government Railway: the last Alco-engined locomotive design introduced in Australia. So, sharing with the M420 the property of being a "post-Alco Alco."