[Amps] SB-220 help

[mike stokes]

I just picked up a used non working SB-220.  Suppoesdly the filament
transformer smoked.  Still have to pull it apart and see what is going
on inside.  Tubes are supposedly still good.

The question I have is it possible/likely that a tube failure caused
the filament transformer to smoke ?  What is the best way to check the
tubes to insure they don't cause more problems ?

Thanks in advance.

-- 
Mike Stokes
KK9V