--- In ham_amplifiers@..., Steven Grant <w4iiv@...> wrote:
What we are not seeing is when this fuse goes, the tube is already
bad!
What the grid fuse does is protect the filament transformer IMO
Steven W4IIV
### IF the tube fil shorted to the grid... u may well be
correct. The CT of the fil xfmr would be tied to the
chassis... via the neg terminal of the grid meter [through the grid
fuse... then to chassis] This would short out the CT to BOTH
halves of the fil xfmr sec... frying it........ unless either a grid
fuse installed... or a fuse installed in the pri of the fil xfmr.
later... Jim VE7RF