Sunn Alpha 6, Same guts as the Sunn Beta‽

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hello, i just scored a $20 sunn alpha 6. how much is the guts similar to a beta bass or beta lead. SUNN Alpha 6 mixer/pa schem

there is the schematic which might as well be in welsh to me. i saw a vid of someone playing guitar through an alpha 4. sounded kinda like a beta. so i gambled and threw down $20 on one off ebay.

it hasn't arrived yet but i'm stoked. could someone smart compare the two schematics for me?
if i make some diy switcher have i just got my self a 6 channel sunn beta lead? maybe a triple stereo channel beta bass? i'm stoked. worst case scenario. i have a $20 mixer

 

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here is the beta schematic Index of /site/svcmans/beta

 

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this guy seems to think theyre the same. at least the power amp. now about the preamp?