I’m needing a ferrite rod, maybe from an old AM radio, to make a filament choke. I suppose that a 3/8 to 1/2” diameter and 4 to 5” long. Let me know if u have one in ur junk box. 73 Mike -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mailman.qth.net/pipermail/mcarc/attachments/20200419/d70f1ad2/attachment.html>