On a wim, I decided to give this deal on Slickdeals a try. For under $25, I wanted to try adding Bluetooth to my 1967 modified ST-70. It sounds fantastic for what it is. I am driving it with both a Ipod 5 and a Windows 8.1 phone. Both give me volume control over the Dynaco, and seem to work throughout my house. The output from the receiver drives both my Dynaco or RCA class A, with no problem. Makes them into a giant JamBox! My local BB has these in stock. This is certainly not audiophile grade, but turned out much better than I had hoped for.
http://slickdeals.net/f/7650602-logitech-wireless-bluetooth-speaker-adapter-22-free-shipping?page=2#comments&rpid=74175188
Mike
http://slickdeals.net/f/7650602-logitech-wireless-bluetooth-speaker-adapter-22-free-shipping?page=2#comments&rpid=74175188
Mike