Riverstone Audio - Tested/Matched Pair (2 Tubes) 7-Pin GE JAN 5654W Fully-Tested Vacuum Tubes - Upgrade for 6AK5 / 6J1 / 6J1P / EF95 - GE 5654W Platinum Grade Pair
SKU: B01BFJDTW0 (Updated 2023-01-13)
Price:
US$ 27.19
Description
As a US seller we stand behind our products. All vintage vacuum tubes sold by Riverstone Audio are backed by our no-nonsense 3-YEAR WARRANTY - THE BEST WARRANTY IN THE AUDIO TUBE BUSINESS! ***IMPORTANT: 5654W tubes can ONLY be used to replace 7-pin 6J1, 6J1P / 6J1P-EB / 6Zh1P-EV, 6AK5, 6AK5W or EF95 tubes. If in doubt check with your amplifier manufacturer to verify that 5654W tubes can be used as a replacement in your particular audio device. AMPLIFIER DAMAGE CAN OCCUR IF YOU USE THE WRONG TYPE OF TUBE AS A REPLACEMENT*** Package contains a closely matched pair (2 tubes) of vintage US-manufactured GE 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, FEWER THAN 40% of the NOS 5654W tubes we test are considered for use in these special matched pairs. 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 4800 micro-mho or higher and a plate current (ip) of 7.2 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.
Features & details
**IMPORTANT** AMPLIFIER DAMAGE CAN OCCUR IF YOU SUBSTITUTE THE WRONG TYPE OF TUBE. 5654W tubes should only be used to replace 7-Pin 6J1, 6J1P / 6J1P-EB / 6Zh1P-EV, 6AK5, 6AK5W and EF95 tubes. DO NOT SUBSTITUTE FOR ANY OTHER TYPE OF 7-pin tube. TESTED and MATCHED Pair (2 tubes) of low-noise 7-Pin NIB/NOS GE JAN 5654W Vacuum Tubes. Considered one of the best of the 5654 / 6AK5 / EF95 family of tubes for audio use. These vintage US manufactured GE tubes are Mil. Spec. (JAN) Electron Tubes - Higher Durability and Life. These NOS tubes were obtained from factory-sealed military surplus boxes. 3 YEAR WARRANTY - BUY WITH CONFIDENCE - All vintage vacuum tubes sold by Riverstone Audio are backed by a no-nonsense 3-YEAR warranty. THE BEST WARRANTY AVAILABLE in the audio tube business. We have been testing and using vacuum tubes for many years and know what it takes to select tubes for low-noise audio applications. RIVERSTONE AUDIO utilizes the best available equipment (Amplitrex AT1000) to test and match audio tubes. THE VACUUM TUBES WE SELL ARE 100% TESTED WITH DOCUMENTED TEST RESULTS. - Only the best NOS tubes are selected for Riverstone's Platinum tested/matched pairs. We reject over 60% of the tubes we test. TEST RESULTS are attached to each tube box. Our experienced engineers match vacuum tubes for BOTH plate current and mutual conductance. All tubes we sell must also pass a specialized life test and an audio sound test. We guarantee that the GE 5654W tubes selected for these matched pairs test at NOS levels at or above 4800 micro-mho and a plate current of 7.2 mA or higher. ***All vacuum tubes sold by Riverstone Audio will have the "Riverstone Audio" name, logo and QC label on the boxes***
EAN: 0763769918220
Manufacturer: GE
Brand: Riverstone Audio
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