Warrior Amp mods

[Mark Martindale]

I picked up a nice HA-10 and have a few questions. I downloaded the 
manual from BAMA ,but the amp I have has a little different bias circuit 
in it. I think there was a mod for this shortly after the amp came out. 
If anyone has the mod, I would like to have a copy of it. I would also 
like to have the earlier schematic. My amp has a 100mfd @ 50vdc cap it 
in and does not have the 11 or the 5 ohm resistors.

Someone changed out the 811's and put 572B's in it. Is there anything I 
should know about this change??  Will it be any problem running it with 
the 572B's?

Thanks,
Mark
N5KJ

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