I found a spool of mylar tape dated 23 March 1972, with "EARS" on it; best I can tell, this was for the Experimental Array Radar System. Image can be found here: https://drive.google.com/open?id=11VKKklor1QDyWCz0b3zVNj_I_vmt4oN4 Anyone have any clue as to the format? Here's the beginning of the tape: 0000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 * 0000060 00 00 00 00 00 00 00 00 00 00 00 40 40 40 08 e5 0000070 43 c1 40 5b 43 c1 40 dc 43 c1 40 5d 43 c1 40 5e 0000080 43 c1 40 df 43 c1 40 e0 43 c1 40 61 43 c1 40 62 0000090 43 c1 40 e3 43 c1 40 64 43 c1 40 f1 c2 c1 40 f2 00000a0 c2 c1 40 73 c2 c1 40 f4 c2 c1 40 75 c2 c1 40 f7 00000b0 c2 c1 40 45 43 c1 40 46 43 c1 40 c7 43 c1 40 c8 00000c0 43 c1 40 49 43 c1 40 4a 43 c1 40 4c 43 c1 40 cb 00000d0 43 c1 40 d5 43 c1 40 d6 43 c1 40 4a 40 c1 40 cd 00000e0 40 c1 40 cb 40 c1 40 7f e0 c1 40 f2 45 c2 40 57 00000f0 43 c1 40 58 43 c1 40 d9 43 c1 40 da 43 c1 40 6e and the end: 0006400 45 c2 40 57 4c c1 40 5e 4c c1 40 f4 cb c1 40 e5 0006410 4c c1 40 fb cb c1 40 ec 4c c1 40 e0 7f 7f 40 40 0006420 40 c7 40 73 4c c1 40 7a 4c c1 40 c7 40 40 40 da 0006430 c8 c2 40 ef 57 c1 40 c1 cd c1 40 46 d0 d0 40 79 0006440 cd c1 40 d5 57 c1 40 4f cd c1 40 5d cd c1 40 c2 0006450 4c c1 40 6b cd c1 40 c8 cd c1 40 58 cb c1 40 df 0006460 cb c1 40 e6 cb c1 40 f2 cd c1 40 46 40 40 40 cd 0006470 40 40 40 4c 40 40 40 d5 d6 c1 40 d5 61 c1 40 40 0006480 61 c1 40 fb d3 c2 40 c7 ce c1 40 7f 57 c1 40 c2 0006490 cb c1 40 49 40 40 40 e3 d6 c1 40 f2 d6 c1 40 58 00064a0 57 c2 40 76 d9 c2 40 40 40 40 08 07 80 80 80 00 00064b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 * 0006600 00 00 00 00 00 00 Would love to know what computer system this was running on. Thanks! Kyle