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12a- Tube amp schematic
LD91 PSU

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Simon June 6, 2022November 27, 2025

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11- Speakers & Subwoofer
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12a- Tube amp schematic
13- Django TVC Preamp
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21b- Tube Data Sheet
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30- Modules
31- Clock Modules
41- Chassis, hardware, and shielding
61- Review
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90 -Archive DIY Projects
91- Vinyl Song Manual
92- Tube output module
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