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Reporting question for Vacuum Tube - 12AX7, Tung-Sol Reissue

Product:
Vacuum Tube - 12AX7, Tung-Sol Reissue

Question:
I am replacing the tube that came with my Pangea headphone amp. it has 12ax7b written on it. will the 12ax7 work for the pangea hp-101?

Answer:
12AX7, 12AX7A, 12AX7B, 12AX7C, 12AX7W, 12AX7WA, 12AX7WA-B, 12AX7 WA-C, ECC83, E83CC, and the 6681 are basically all exactly the same tube. The 6681 was the same as the E83CC, and was a 12AX7 made for mobile use (Used in equipment in vehicles like cars, trucks, jeeps, airplanes, ships, boats, trailers, tanks, etc.). The 7025 and 12AX7A were a low noise 12AX7. These tubes are all interchangeable with one another. The 5751 is a lower gain 12AX7 and is also 100% interchangeable with any 12AX7 too.