Standard Tube Set for Mastersound 300B Monoblock Plus

TubeDepot supplies vacuum tubes for musical instrument amplifiers, Hi-Fi amplifiers, vintage vacuum tube recording gear and associated equipment. We provide tube sets for virtually any vintage or new production amp on the market. This tube set contains the following tubes. 2X JJ 300B Power Vacuum Tube. 1X Electro-Harmonix 6SN7 EH Preamp Vacuum Tube.