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All manuals and user guides at all-guides.com Acoustic 150, 134 & 135 Service Manual (note: 150B, 136 and 140 are similar; those models used two 17-10 preamp boards instead of one 17-10 and one 17-11)
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All manuals and user guides at all-guides.com Pages 20-23 inclusive are missing (Speaker wiring diagrams)
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