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Ease of C.W. Transformer Design Written by A.H. Babcock 1064
10W Hi-Fi amplifier Written by Depczyk Andrzej 2383
Universal 15VA Hi-Fi amplifier Written by Depczyk Andrzej 2013
Two-channel gramophone amplifier Written by F. J. 2366
Simple tube tester Written by Grzegorz Makarewicz 2367
Perfume by radio Written by Grzegorz Makarewicz 1057
The Radio Face Written by Grzegorz Makarewicz 1070
How to Make a Two-Step Amplifier Written by Grzegorz Makarewicz 1067
How to Design an Iron Core Audio Frequency Choke Coil Written by Grzegorz Makarewicz 1093
The Vacuum Tube as an Amplifier Written by Grzegorz Makarewicz 1193