DIY Vacuum Tube amp kit from Gakken

iPods and other portable audio are convenient, but don’t provide the kind of sound quality you need for your audio system at home. The Vacuum Amp from Gakken solves this problem and lets you build the kit yourself in only 30 minutes! You can also experiement with sound by inserting normal straws of different lengths (not included) in the rear of the speakers.



The Vacuum Amp uses real vintage vacuum tubes made more than 30 years ago! Connect your iPod, computer, radio tuner, or other audio devices with ease.

Gakken Vacuum Amp features:

• Size: 20x7x14cm (7.9x2.8x5.5”)
• Weight: 1100 g. (2.4 lbs)
• Output: 100 mW / ch
• External speakers: x 2
• Direct thermal type vacuum tube x 4
• Battery (not included): D battery x 2
• Input: RCA
• Manual: Japanese