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Heathkit AA-181 schematic needed

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bobhedberg

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Joined 2004
Hi

Does anyone have a schematic for a Heatkit aa-181?
I'm currently restoring one, and a schematic would come in handy (though not necessary).

I've already cobbled together what is inside of the tone-control module. After testing it against some other heathkit tone controls, It appears to be the same circuit in all of their home-hifi preamps, and the same as the AA-100, which did come up on this group search.

Thanks
Bob Hedberg
 
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