Introduction to Craft Audio First Time Vacuum Tube Amplifier (Complete Construction of a 300B Stereo Amplifier) First Time Vacuum Tube Amplifier: Introduction to Craft Audio by Tatsuo Kurokawa (Published November 11, 1999) This book clearly introduces the basic principles of vacuum tube amplifiers, circuit design, how to read circuit diagrams, and everything from selecting parts to building the amplifier. Price: ¥3,000 + tax Product Condition: ・Due to long-term storage, there is some wear and tear, and discoloration due to aging, but it does not affect use. ・There are underlines with a marker in some places in the text. There is no problem in reading it, but please be aware if you are concerned. Thank you for viewing. Thank you very much.