i love Radioshacks stuff from the 70's. they made really amazing items. also build some back bone :P. my sansui's are huge with solid steel case and solid wood case on my other sanui easily weighing over 50lbs each. i use to carry them up and down the stairs in my house. man it was so much fun
I'm listening to a normal bias Lambda out of an SRD-7 driven by a Realistic STA2200. It's a beast of a mosfet amp from the 70s. It weighs about 60 pounds and I made the mistake of having it delivered to work. It sat in my office for 2 months before I managed to get it home.
Vintage amps are very popular on the ortho thread.