Useful and/or obscure information: |
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New
Approaches to Improved Tonal Reproduction, Pt 1
db Aug 73 |
1, 2, 3, 4, 5 |
Tube Types for Audio Use
Radio & Television News Nov 56 |
1, 2, 3, 4 |
New Transformer Design for Power Amplifiers
Radio & Television News Nov 56 |
1, 2, 3, 4 |
Presto Recording Corp Amplifier Model 41 A schematic |
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