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instructables.com
The PA1 DIY Tube Preamp: Efficiently Built With Salvaged Components
The PA1 DIY Tube Preamp: Efficiently Built With Salvaged Components: There are plenty of resources about building tube preamps on the web and in print, so I thought I would share something a little different. This instructable covers the construction of an open source tube preamp of my design and not only is this a u…
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