[HAM] Fuses for the AO28 preamp.

[Kon Zissis]

Hi everyone.
As part of my partial rebuild of the AO28 preamp of my recently acquired
1965 C3 I have added four fuses into the AO28 preamp.
 
I added a 1 Amp fast blow fuse to the AC mains primary winding of the
power transformer
 
I added a 1 amp fast blow fuse between the high voltage  secondary
winding wire and the pin 1 of the  6X4 valve.
 
I wired a 1 amp fast blow fuse between the pin 7 of the 6X4 valve and
the  HT voltage for the power supply.
 
I have converted the AC  heater filament voltage to DC by ungrounding
the  centre tap of the filament voltage winding section of the power
transformer and then I added a   PBPC 1004 bridge rectifier  and a 2200
uf 25 volt rated electrolytic capacitor and then I added a 4 amp slow
blow fuse  between one of the wires coming from the filament winding of
the power transformer and the AC input  wire of the bridge rectifier.
 
Are these four  above mentioned fuses of  the proper  ampere  rating and
types ( fast blow and slow bow ) for the particular sections of the AO28
as mentioned above ?
 
If these are not the correct fuse types for those sections of the AO28
, then what are the proper ampere   ratings and fuse types for these
sections of the AO28 ?
 
Are these above mentioned  four fused sections  of the AO28 sufficient
to fully protect the power transformer in the event of a short circuit
or other damage or in the event of  the 6X4 valve malfunctioning  or
dying  ?
 
Should I also add a fuse between the pin 6 of the 6X4 valve and the
corresponding wire coming from the high voltage  secondary  winding of
the power transformer ?
 
I also want to add an inline fuse at the AC mains section so that the
whole organ including start and run motors are fuse protected.
 
What is the correct ampere rating and fuse type for the  AC mains
section  inline fuse to protect the whole organ on it's own and also the
correct fuse rating  and type  to allow for one or two Leslies connected
to the organ  ?
 
Thank you in advance for a reply.
All the best.
Kon