K1SVC S-38 Hallicrafters Restoration – Part 4 Posted on November 23, 2015 by Allen - WD0DXD Leave a comment In this video I go over the results of installing the isolation transformer, Test the tubes and show the end result. We also find out we have some work to do on the Oscillator Coil. Share this:PrintEmailTwitterFacebookReddit Related Posted in Projects tagged with Antique Radio, Hallicrafters, Radio Restoration