If all else fails, measure or figure out the current and choose a replacement of the same physical size. You'll be real close. Neil On Thu, Jun 23, 2011 at 10:32 AM, <cemilton at aol.com> wrote: > I have a Filament Choke with Heath part number 45-78 on it.... > > Can someone help me i.d. this choke? Looking for the value also.