A high ratio transformation is generally done up as a series of smaller steps, both for reasons of efficiency and for bandwidth. And 49 to one is a big hop for a single stage.
There is a Facebook 49:1 group selling what I call, "Snake Oil".... The Owner may have found the magic combination on his EFHW , but there have been hundreds of toroids sold and cracked due to heat.
Palomar stock is surging while toroids are burning.
A lot of unhappy new hams looking for a "magic antenna matcher". They want all bands to match below 1.5:1 .
Admittedly, my only foray into efhw used a 1/4 wave matching section of home-made ladder line and had a 2:1 bandwidth of
around 50 kc on 75 meters .... totally off scale every where else. But the matching section was a direct ground at the cold
end for lightning and static dissipation. I have dreams of a tower mounted air coil with a motorized vacuum variable in a weatherproof box. I also dream of those years when climbing the tower didn't take three or four rest stops... LOL !
Don W4DNR