Tested/Matched Pair (2 Tubes) 7-Pin JAN 5654W Fully-Tested Vacuum Tubes - Upgrade for 6AK5 / 6J1 / 6J1P / EF95 - JAN 5654W Platinum Grade Pair

Tested and matched pair (2 tubes) of low-noise 7-Pin NIB/NOS JAN 5654W Vacuum Tubes. Regarded as one of the finest in the 5654 / 6AK5 / EF95 family of tubes for audio applications. Each tube must also pass a specialized performance evaluation and an audio sound test. Platinum Grade tubes come with data labels displaying measured ip and Gm values. Amplifier damage may result from using an incorrect tube type. 5654W tubes are designed to directly replace 7-Pin 6J1, 6J1P / 6J1P-EB / 6Zh1P-EV, 6AK5, 6AK5W and EF95 tubes. DO NOT substitute for other types of 7-pin vacuum tube unless approved as a substitute by the manufacturer of your audio equipment.

For JAN 5654W tubes, water-based silk-screen printing was utilized for final tube-markings; the green-color print may appear faded or partially missing due to the age of the tubes (production of 5654W tubes ceased roughly 35 years ago). Verifying the authenticity of a 5654W tube is relatively simple, as both "5654" and "USA" were etched into the glass during manufacturing (this is visible in one of the listing images). The final green-color print was applied to indicate additional details, such as "JAN 5654W", "Made in USA", factory logo, date-code and other tube specifications including the "JAN" (Joint Army Navy) military-use designation