Somerset Data Technology Archives – Data Recording
For a short period, we are publishing some information from our archives of Data Recording.
This covers periods including our time at SE Labs (EMI) Ltd, Thorn EMI Datatech and Penny and Giles Data Systems, all now defunct.
These archives relate to Instrumentation Data Recording, centred around the Electronics Companies based In Wells, Somerset, at one time belonging to the EMI company.

These companies were very important employers in the area and led to many spin-offs and resulting high-tech companies. At their peak, the EMI Companies on this and associated sites employed over 1000 people. The Penleigh works pictured above housed both SE Labs(EMI) Ltd and EMI Electronics Wells, a major defence company specialising in radar technologies. Sadly for the area, almost none of these now exist, and high technology is no longer a feature of Somerset. The once thriving EMI Penleigh Works in Wookey Hole Road (pictured above) is now a dense housing estate.
The products mentioned were extant across most of the company names above, as the organisation was sold and re-sold.
Instrumentation Tape Recorders encompassed technology at its edge, so there are many firsts – switched mode power supplies, brushless dc motors, symbol-based digital encoding, dsp-based servos and many more. This, together with precision manufacture only found in aerospace, made for really interesting technology.
Of equal significance were the computer Tape Drive systems, such as the SE8000, incorporated into the first CAT scanner developed by Godfrey Hounsfield.
A number of local businesses spun out of this original business, including Avalon Electronics, M5 Data, Somerdata and Phi Labs, all engaged in some form of data recording.
If you have memories or stories to tell that you would like included here, please contact us using the comments section below.
Archived Product Information and Software
These sections lists some of the data sheets, product brochures etc associated with these companies.
Where software/firmware download links are shown, please note that these are provided without warranty or technical support.
Magnetic Tape Recorder Publications
Other links
Magnetic tape recording history
https://core.ac.uk/download/pdf/286833433.pdf
A History of Penleigh, St Andrews Press and the original PoW usage
May 30, 2022 at 11:02 am
Hello,
Are you still working in Data Diode?
Thanks
Mahmoud shalaby
June 22, 2022 at 9:23 am
This is a historical data archive for Data Recording companies that operated in Somerset, UK and now no longer exist. There is no direct connection with these Companies, or any of the products they may have had.
Thanks
October 22, 2023 at 8:19 pm
I’m trying to find out more about my grandfather who worked for Thorne emi in wells. How can I find this information?
October 31, 2023 at 6:00 pm
I suggest you try the Wells Community Notice Board facebook page. https://www.facebook.com/groups/255570428166316/
February 2, 2025 at 6:01 pm
Any chance that someone has schematics or even the optional IEEE-488 card for SE3000 ?
I am trying to repair the SE3000 but without schematics it’s pain.
Thanks
March 19, 2025 at 12:07 pm
Hi, sorry for the late reply. I don’t have the schematics, but i may be able to point you in the right direction if you let me know what the problems are.
July 31, 2025 at 7:19 pm
Just came across this history, great to see someone has taken the effort to document it all
June 21, 2026 at 6:24 pm
Good evening,
Is it possible to still acquire the manager setup program for the EDIC~mini Tiny? Its the small black rubber coated recorder.
Kind regards
Phil
July 29, 2026 at 9:11 am
https://www.somerdata.com/somerdata-ltd-product-archive/