Electric Radio Magazine - Symbolic Publishing Company

New Files in the “Download” Area

Be sure to check the download area for new files. We’ve added all of the “Turbo Ranger” mods from Dee Almquist (W4PNT, SK), SX-28A alignment info from Bill Feldman (N6PY, SK), and a collection of R-390A files we received years ago that were too large to publish. Read More…

Hollow State Design, Version 2

The revised and expanded version 2 of “Hollow State Design,” a unique, excellent book all about about design and construction of tube circuits, is available!   Read More…