Ah, thanks for the info! Fortunately, the little bugger seems to be working just fine, other than the fact that the particleboard is about to crumble apart - I think in spots it may be being held together by the tolex.

I was a bit concerned that the particleboard issues were due to moisture, but taking a look inside it's surprisingly clean with no signs of rust or other damage. And considering what it's putting out, it is quite a loud beastie that sounds pretty darn good.

Like I said before, there is precious little info out there about these, but one thing I did read was that they were somewhat notorious for blowing their output transformer, so it's good to know some details on that.

I was considering using one of these as a replacement:

http://store.triodestore.com/40-18031.html

I was thinking it might provide a bit more breathing room; any thoughts?