Welcome to the home of RAM TUBES. Founded by Roger A. Modjeski, RAM TUBES has made it a mission to bring you the highest quality, most reliable tubes available.

The world of tubes today can be confusing, even frustrating when it comes to selecting the right tubes for your equipment. It's often difficult to tell what really matters and what doesn't. At RAM TUBES, vacuum tubes are our life’s work. We know what matters so that you can be assured that the tubes you purchase will meet our specifications, and more importantly, your needs.

Our experience with designing tube audio equipment and visiting tube factories around the world means that we know exactly how a tube will perform in a circuit, and that's what really matters. The information we have provided on this site is based on decades of experience and our goal is to guide you in making an intelligent and informed buying decision that is right for you and your equipment.

Every tube we sell is selected, tested and graded using a proprietary computer testing system developed by Roger A. Modjeski. This allows us to sell tubes that are within 1 dB of the theoretical noise limit for that tube, so that even our lowest graded tubes will outperform most tubes on the market.