Regarding a recent question on Amazon about the price of our tubes
A customer recently (November 2021) asked about the lower price of our 5654w tubes earlier in the year. James summed it up best, so I'll...
Clarify an Issue Brought up by a Reviewer of Riverstone Audio' Vacuum Tube Pin Straightener
Let me preface my comments by stating that a 1-star review that appeared on Amazon is TOTAL NONSENSE and likely from a competitor. The...
Clarify Issues Brought up by a Reviewer of Riverstone Audio's Record-Level VTF Gauge
We recently took action against multiple dishonest individuals for IP infringement of our VTG gauge. Shortly afterwards, received...
Riverstone Audio Record-Level Turntable Vertical Tracking Force Gauge - Setup and Features
This video outlines the set up, calibration and use of Riverstone Audio's Record-Level Turntable Vertical Tracking Force Gauge. Our VTF...
Accurate Testing 5654W Vacuum Tubes
How 5654, 5654W and 6AK5 vacuum tubes are tested and selected at Riverstone Audio.
Testing and matching GE JAN 5654W tubes
This video shows the testing of vintage GE JAN 5654W vacuum tubes using a Hickok 539B tube tester, and highlights the test parameters...
