Practical Amplifier Diagrams - 45 Proven Circuits For The Technician And The Experimenter! (by Jack Robin & Chester E. Lipman)
(http://i1162.photobucket.com/albums/q537/0x4E4F/Practical_Amplifier_Diagrams.jpg)
Стара книга (1947) со шеми за засилувачи со електронски цевки (ламби) ;).
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