I've got one of these for sale/trade if anyone is interested? See my comment in the reviews (and posted below):
I've got one of these HH combos here in the UK. I've had it since new, over 30 years old, it's never been gigged and it still works as good as new. It truly is as good as the reviewer says and VERY reliable - not one problem in over 35 years of ownership! I need to trade it in for a smaller combo though, it's just too heavy to carry around to rehearsals. If anyone is interested in buying/trading it then please drop me an email to slang830 at gmail dot com. Someone somewhere is gonna inherit a fine example of this wonderful amp.