Too bad I have to miss your meeting. I'll be out of town Sat. More on my audio gear: I built two Dynaco products from a kit back in the winter of 1972, an integrated amp and an FM tuner, the FM5. (Got a boxful of parts and instructions) Have both of them and the tuner still works. The amp has a very low level hum (probably bad capacitor somewhere) and when I tested it a few days ago it sounded OK at low, background music levels but distorted when played louder. I was really disappointed. I also have a set of Large Advent speakers bought in about 1977.
I'll be on the lookout for your next meeting. I'm about 55 miles west of Hsv.