Mars Vintage 30 tetrode push-pull with tube rectifier and choke input filter. The 6V6G's are idling at 70% dissipation with a B+ of about 300V DC. This one has a Bluetooth receiver built in. #6v6g #5u4 #12au7 #tubeamps #tubeamplifier #diykit #point2point #madeinsouthafrica #marsamps #diytubeamp #diytube https://www.instagram.com/p/CaUto9QKOtG/?utm_medium=tumblr










