Documentation section for project. Hosts various test equipment documents, manuals, firmware dumps, software tools and internal photographs. How often you got some old legacy instrument or test equipment gear, but unable to find any documentation or schematic diagrams for it? It’s a common situation, since hobbyist websites and vendors for stuff made decades ago may not be available today.

This site stores that data on dedicated physical server and intend to achieve and preserve valuable knowledge and information, not solely relying on long-term availability of original source.

All content presented here is for non-profit education only, dedicated to electronics engineers. Datasheets, schematics, firmware files or any other content present on this domain completely belong to respective authors and owners. Content downloaded and rehosted from public webspace always have reference with name of the creator, and original link to the material in references section.

Also this site offers hosting for your test equipment high-resolution photos, unlimited in storage and hosting time. 100% advertisement and banner free.
To upload your photos/files just follow instructions here


Repository index and all files are available at after simple browser authentication.

Update from November 10, 2023:

Document repository is up and online again in test mode for readers and members. Sadly due to current situation authentication is now mandatory to access repository. Please contact team[@] mail to request your own unique login and password to repository. It would also be nice to introduce yourself a bit and confirm your country and town. Sorry for the inconvenience.

If you never contacted before, please introduce yourself and confirm your geographical location (Country and town/city, no need for personal addresses). Just a short paragraph about your interest and background with electronics equipment or technical documentation you need would be enough. You’ll then get your unique login and password to access the repository.

Remember, documents are otherwise freely available, it will never be under any kind of paywall. And since we all adults, please not share your login/password with 3rd parties but direct them to this page instead.

Thank you for the your patience.

Update from September 1, 2023:

One of the contributing factors is the exclusive focus of on research and metrology objectives, coupled with very minimal IT resources. With no dedicated team of system administrators or moderators to address immediate hosting needs, we can only advise to directly contact test equipment manufacturers and vendors for more urgent support or manuals. We deeply apologize for any inconvenience you may have experienced. We understand that your engineering needs are paramount importance, and we regret any disruption or trouble you have encountered due to free documentation repository disruptions.

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