HP 7970B/E Tape Unit manual available

[COURYHOUSE at aol.com]

Al - I have had them  with 7 and with 9 but never lucky enough to get  the 
dual  headed  one... yea... well worth putting online.  do  you have  a link 
to any sales info on this?   I used to hear of  these but never  laid eyes 
on one. Ed#
 
 
In a message dated 9/22/2016 10:32:09 A.M. US Mountain Standard Time,  
aek at bitsavers.org writes:

I'm  trying to decide if I want to attempt getting my 7970 with a dual 7/9 
track  head
running this year.