As A Us Seller We Stand Behind Our Products. All Vintage Vacuum Tubes Sold By Riverstone Audio Are Backed By Our No-Nonsense 4-Year Warranty - The Best Warranty In The Audio Tube Business! ***Important: Amplifier Damage Can Occur If You Use The Wrong Type Of Tube As A Replacement. 5654W Tubes Are A Direct Substitute Only For 7-Pin 6J1 6J1P / 6J1P-Eb / 6Zh1P-Ev 6Ak5 6Ak5W Ef95 And 403B Tubes. For Other Substitutions Check With Your Amplifier Manufacturer To Verify That 5654W Tubes Can Be Used In Your Particular Audio Device.*** Package Contains A Closely Matched Pair (2 Tubes) Of Vintage Us-Manufactured Jan 5654W Vacuum Tubes. The Tubes Are Amplitrex Tested And Matched And Subjected To Multiple Test Cycles To Determine Stability. Plate Current And Gm Are Both Matched To Within 3%. Matched Tubes Undergo A Final Audio Sound Check To Make Certain They Are Indeed Audio Quality. With Our High Standards 5654W Tubes Were Originally Designed As A Low-Noise Premium-Grade Substitute For 6Ak5 And Ef95 Vacuum Tubes. The ""W"" Designation Refers To Ruggedized Military-Grade Tubes With Better Quality Control And Internal Design Changes To Enhance Reliability. These Vintage Tubes Have Found New Life As Replacements For 7-Pin 6J1 6J1P (6Zh1P-Ev) 6Ak5 And Ef95 Tubes And Are Commonly Used By Audiophiles For Improved Sound Quality. When Received We Guarantee The Tubes Will Test At Nos Levels Of 4400 Micro-Mho Or Higher And A Plate Current (Ip) Of 6.4 Ma Or Higher (Tested In Fixed-Bias Mode At A Plate And Screen Voltage Of 120 V And A Grid Voltage Of -2.0 V). Note: Some Amplifiers Such As The Little Dot 1+ Mk Ii And Mk Iii May Require Circuit Board Jumpers To Be Changed When Swapping Tubes (Procedure Is Outlined In The Little Dot Manual). All Vacuum Tubes We Sell Are Carefully Packed For Shipping And Will Have The ""Riverstone Audio"" Name Logo And Qc Labels On The Boxes.
Actual product packaging and materials may contain more and/or different information than that shown on our website. We recommend that you do not solely rely on the information presented and that you always read labels, warnings, and directions before using or consuming a product.
For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. ZiFiti does not assume liability for inaccuracies or misstatements about products.
Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
