My last secondhand purchase was a Leak 3400 receiver which was I believe made between 1979 - 1982. Can't find to much info on it on the web but the production of the 3000 series was moved from the UK to Japan which may have put some people off buying them.
What I can tell you is that it's big - 54cm (21.5in) wide, uses all din sockets including 2 pin speaker plugs and once warmed up sounds fantastic, better than in fact than my NAD C320Bee. Has a better controlled bass and a little more clarity in the mid range. The high trebles can get a bit harsh through my Monitor Audio Bronze B2's. Haven't got any pictures yet but will post some soon. The link to hihigoteborg.se has a fuzzy black and white image and a few details. All in all a very well spent £45.
http://www.hifigoteborg.se/Leak%203400%20spec.htm
Quick edit here's a picture from the eBay listing where I won the Leak. (pic by pmecl5)

I'll try and take some pictures with all the bulbs glowing and post them in the near future.