Fender Echo Chamber: Info ?

I saw this on Ebay. Anyone have any info about it?

http://www.ebay.com/itm/1962-1967-Fender-Electronic-Echo-Chamber-/160785573693?pt=Guitar_Accessories&hash=item256f91273d

Found a couple of things. Info is pretty scarce. It seems they have a bad track record with reliability.
http://bb.steelguitarforum.com/viewtopic.php?p=1305632&sid=9675f7f14670a3cba5ebcbb310355694
http://books.google.com.au/books?id=kO8y6J6Is_4C&pg=PA163&lpg=PA163&dq=Fender+Electronic+Echo+Chamber&source=bl&ots=IngKP3sqin&sig=orG6o8TtGlFlVdTl5ewvaZDXV6A&hl=en&ei=MbAmS8O-PM20tgeXqbnhBw&sa=X&oi=book_result&ct=result&redir_esc=y#v=onepage&q=Fender%20Electronic%20Echo%20Chamber&f=false

I had one in the 90's. Nightmare, because I paid a lot to get it fixed, then had to clean it all the time, and the tape is a pain, plus the motor is noisy - you have to put it on another room to record, and the output was iffy. I had to sell it in a pinch. These things I don't mess with anymore. To get them fixed you pay more than they're worth, and it's not like it's a tube echoplex. Either way, you're better off with a Stomp box. The TTE Fulltone is fun though, and reliable.