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Nutube Stereo Valve Preamplifier PCB pattern (PDF download) 
A PDF with the PCB design for the Low-voltage Valve Audio Preamp (double-sided).
Both layers are in a single PDF.
Cat No SC5267. Price: Free
Nutube Preamplifier PCB (01112191).pdf
Project: A low-voltage valve audio preamp
Other items relevant for this project:
Nutube Stereo Valve Preamplifier PCB 
Nutube Stereo Valve Preamplifier panel artwork and drilling templates (PDF download)