Mr. Gordon, Why is converting the receiver to all parallel filaments a stupid idea? Just curious, Robert Jenkins KG4KGL > On Jul 19, 2021, at 11:54, Kenneth G. Gordon <kgordon2006 at frontier.com> wrote: > > In any case, as far as I am concerned, converting the radio to use either 6 V tubes, or to > change to all parallel filaments are really stupid ideas.