I've just checked my master tape and have this additional information t what I previously cited. The disks were 12" glass 78 lateral cut. They're not as tinny as I'd remembered & noted. All of the sides were tracked with a G.E. VRII cartidge. 1 - 11 with a 2.5 mil truncated & 12 (the only noisy one) with a 3.0 truncated. They were transferred on 02-06-75. The broadcast was sponsored by the u.S. Treasury Dept. & Produced by Carol Crawford and John Weilberg (spellings not confirmed) The tape's Maxell UD-50 so of course, NOTHING had to be done to render the tape playable. I'm going to ask the people @ Cambria about their source to determine which (if either) has better audio. Art (Shiffy) Shifrin