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Title Author Hits
10W Hi-Fi amplifier Written by Depczyk A. 9244
20W Amplifier Written by Klimczewski Cz. 8396
20W to 35W tube audio amplifier Written by A.W. 8485
2x8W stereo tube amplifier Written by Teichman B. 8350
Amateur tube tester Written by Borowik B. 9004
Amplifier "5L" Written by Klimczewski Cz. 8279
Audio Tube Amplifiers Written by A.W. 10303
DC Power Amplifier RA360ST Written by Terlecki R. 8490
Designing output transformers (RiK 12/1974) Written by Super User 10203
How to make 1-tube amplifier powered from AC Written by Radioamator 1952/9 8531