Alexander Sergeevich Khramushin's book "Hi-end amplifiers on military tubes" is written for all lovers of "tube" sound, both those who know how to hold a soldering iron in their hands, and those who only use tube audio equipment. It's no secret that commercially available tube audio equipment is quite expensive. Costs can be significantly reduced if you assemble the amplifier yourself or have it manufactured by a private individual. It is for this purpose that this book was created.