Over the years, restoring old tube radios has often required locating information such as schematics, wiring diagrams, and general documentation. These resources can be difficult to find, and the lack of available information can make restoration challenging.

This site is intended to grow into a reliable source for that material, helping to support the hobby and encourage continued interest in Old Tube Radio among both new and experienced operators.

Considerable effort has gone into building this site, and it remains a work in progress. Contributions of information, documentation, or corrections are welcome.

Acknowledgment is given to the following individuals for their support:

Jim, SWL#1 – A key influence in OTR for many years and an early supporter of this site.

Kevin, SWL#2 – Provided valuable technical information and expertise.

Dennis, SWL#33 – Ongoing support, friendship, and service as Net Control.

Recognition is also extended to all SWLs who have contributed to and supported OTR over the years.

Rob, SWL#3 “Lone Eagle”