I just saw this on craigslist - listed for $450.
1969 Sunn 200s tube bass guitar amp head. I actually used this as a guitar amplifier which it worked fine as. The amp has 60 watts of power, with 4 ohm & 8 ohm output connections. The amp has been converted a 3 conductor power cord. It could probably benefit from new tubes but it works and sounds just fine. It was originally designed to drive two 15" JBL D-140 speakers which are not included because I don't have them. It in great condition for being 38 yrs. old. Alot of low end punch!
http://knoxville.craigslist.org/msg/327826489.html