On Apr 6, 2014, at 8:46 PM, Jeffrey D Angus <jdangus at att.net> wrote: > <http://www.ebay.com/itm/181369524436> I suspected that was an ST-6. And a close look at the picture that shows the bottom side of the end circuit board confirms that it is an ST-6 and rather nicely made. Roy Roy Morgan RoyMorgan at alum.mit.edu K1LKY Since 1958