This is the simplest puppy in the world to put together and would make a nice first project. I actually have built an amp almost identical to this, (albeit with a much better power supply, transformers, case, connectors, volume pot and tubes) and it sounds nice. It collects dust with great accuracy in the closet now.
If you want a less snarky answer than one given in DIY, post on "Tubes" for the store bought folks.
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Long Live Dr.Gizmo
