[Amps] question re AL-1500 ameritron hf amp

[Fern Rivard]

    I was just looking at the schematic of the Ameritron AL-1500 amp 
which uses an 8877 tube. It appears that they have a Pi-L network used 
on only the 2 lower bands (160 and 80 meters) while the rest of the 
bands are stricly Pi-net.  Am I missing something here?
    Thanks from Fern