Home Page Link
Headsets Link
Intercoms Link
Audio Panels Link
Accessories Page Link
Cables Page Link
Where to buy Link
Technical Info Page Link
Service Page Link
Catalog Request Page Link
Contact Page Link
Site Index Page Link
nav sidebar image
Aviation Home Page Image SPO-23 Transcom III intercom

The Specialists in "Sound" Management

Quality — that is what Sigtronics was founded on over 40 years ago. Sigtronics pioneered the voice activated intercom market in 1974 and continues this commitment to produce high quality communication products for aviation.  All design, assembly, and quality control is done at our facility in San Dimas, California. This allows us to maintain our high standards and fast customer response.

Customer Service: Quality and customer service are first at Sigtronics. Technicians are available to answer your questions about our products, from our standard headsets and intercoms to custom made systems.


The Sigtronics web site contains operating, installation and modification instructions for all Sigtronics products. Instructions for current and out of production units are available allowing instant access to the information you need. Sigtronics strives to serve and provide you with the best solutions for your problems quickly.

At Sigtronics pilots are part of our management, engineering, and manufacturing staff. We are happy to answer your questions and discuss your special requirements.

  • Aviation Products Warranty Registration
    To register your Sigtronics product, please use this Link to the registration form.
  • New at Sigtronics – SPO Stereo Portable Intercom, follow this Link
  • Frequently Asked Questions follow this Link
  • To request information on becoming an Authorized Sigtronics Aviation Communication Systems Dealer follow this Link or call 909 305-9399

Sigtronics Privacy Policy