Nu:Tekt OD-K1 Vacuum tube overdrive production kit using nutube [Assembly and soldering required]

'- Vacuum tube: Nutube 6P1 - Connection terminals: INPUT terminal (monaural phone jack), OUTPUT terminal (monaural phone jack), DC 9V terminal - Power supply: 9V alkaline battery (6LF22/6LR61) (sold separately) , or DC 9V AC adapter (sold separately) -Battery life: Approximately 18 hours (Single, using alkaline batteries), Approximately 10 hours (Double, using alkaline batteries) -Current consumption: 28mA (Single), 46mA (Double) External dimensions: 120 (W) x 96 (D) x 55 (H) mm ・Weight: 340 g (excluding batteries)