On Sat, 18 Feb 2017, Chuck Guzis wrote:
  I'm looking at what I suspect is a labeled Harris
VOS (Vulcan) tape.
 Is it the case that the Harris minis are incapable of writing tape
 records that aren't a multiple of 3 bytes in length?  The reason I ask
 is that the VOL HDR, etc. records all seem to be 81 bytes in length.
 All other records on the tape are also a multiple of 3 bytes long.
 Anyone remember anything like this?  The Bitsavers documents are of no
 help as far as I can determine. 
Does the Harris use a 24 bit word?