Ultrix Tape: Block Size?

[Warren Toomey]

All, I received this request from Matthew who isn't subscribed to either
the TUHS or cctalk lists. He knows how to read the lists archives. Many
thanks for any help you can provide.
Cheers, Warren

----- Forwarded message from Matthew Whitehead -----

Date: Mon, 15 Oct 2018 08:25:39 -0400
From: Matthew Whitehead
Subject: Ultrix Tape Blocks

   Warren,
     I wonder if you can give me a referral. I want to install Ultrix-32
   on my MicroVAX II using the ancient TK-50 tape drive. I know the tape
   files are on your archive, but I need to know the block size for each
   of the many files; it can vary a lot.
   Who might be able to help me with this?
   Matthew Whitehead

----- End forwarded message -----