This shows that drive is a TU56 serial number 5105 and inspection sticker dated 9/8/1970. The motor capacitors were dated 1970 but the power supply capacitors were dated 1974 so I am not sure when this drive was manufactured or sold.
Feel free to contact me, David Gesswein djg@pdp8online.com
with any questions, comments on the web site, or if you have related equipment,
documentation, software etc. you are willing to part with. I am
interested in anything PDP-8
related, computers, peripherals used with them, DEC or third party, or
documentation.