Customer Support Downloads
Downloads & Technical Documentation
PRODUCT DOCUMENTATION. TECHNICAL RESOURCES. LIFECYCLE SUPPORT.
Tel-Instrument Electronics Corp. is committed to supporting our customers throughout the operational life of their avionics test equipment. This Downloads Center provides convenient access to product manuals, technical documentation, service information, and engineering resources for both current and legacy Tel-Instrument products.
Our documentation library continues to expand as additional manuals, service bulletins, technical publications, and product resources are added to our online support center.
Commercial Manuals
Download operator manuals for current and legacy commercial avionics test equipment, including installation, operation, maintenance, and reference documentation.
Military Technical Manuals
Military technical manuals contain controlled technical data supporting U.S. and allied military programs. Documentation is available through Tel-Instrument Product Support for authorized customers.
Request Military Documentation
Service Bulletins
Service Bulletins provide important product updates, firmware revisions, engineering improvements, operational recommendations, and other information intended to help customers maintain peak equipment performance.
Our Service Bulletin library is currently being organized into our new online support center. Product-specific bulletins will be available here soon.
Technical White Papers
Our engineering team periodically publishes technical papers, application notes, and educational resources covering avionics testing, regulatory requirements, product applications, and emerging technologies.
Technical White Papers and application notes are currently being prepared and will be published here as they become available.
Legacy Product Documentation
Tel-Instrument has supported avionics test equipment for more than 75 years. Documentation for many discontinued commercial products remains available and has been incorporated into our Commercial Manuals section, providing a single location for both current and legacy product manuals.
Need Additional Documentation?
If you cannot locate the documentation you need, require a different manual revision, or need assistance identifying the appropriate technical publication for your equipment, our Product Support team is available to assist.
