Hi Martin, I am looking for a manual for the above tape reader and found your details from a discussion on cctalk from July 2022.
I am a volunteer at The National Museum of Computing and an ex Ferranti engineer. I am currently restoring an Argus 500 computer and trying to get it back to its original configuration. I have recently restored 2 Trend HSR 500 readers and now have acquired 2 UDR 700 readers that need to be fixed and set up. My latest video on YouTube https://youtu.be/8HtRqe6jzc8?si=MmRL4qbh_7PZjVff In the email you said you had scanned the document into a file. Would it be possible to upload it to Google Drive and send me the link so I can download it? Ultimately I would like to upload it to the Museum archive and make it available for everyone to view. I am assuming that there are no copyright issues as Trend was finally wound up as a company in December 2022. Hope to hear from you soon Kind Regards Malcolm Clark