AMERICAS OLDEST MANUFACTURER & PUBLISHER

Crystal Set & One Tube Radio Plans Plans & Instructions
"Finding your site was better than Christmas Morning. I thought this stuff didn't exist anymore" - William H.
Exclusive Source, printing and publishing of all MRL® Handbooks and Literature by Paul L. Nelson and Elmer G. Osterhoudt.Tested Instructions and Plans.
Modern Radio Laboratories® P.O. Box 14902 Minneapolis, MN 55414-0992 Email: bzowy51(at)gmail(dot)com Updates 2023.11.14 MRL® on Facebook Copyright 2018 - 2023 Paul L. Nelson Modern Radio Laboratories® All Rights Reserved.Modern Radio Laboratories®, Modern Radio Labs®, MRL®, and the Modern Radio Laboratories design/logo are registered trademarks of Modern Radio Laboratories®. Presentation and Design (C)2023 Modern Radio Laboratories®. ALL RIGHTS RESERVED.