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Problem (?) with new 845 tube

I recently purchased some Psvane 845T mk. II tubes from Grant Fidelity. Both tubes bias correctly and keep the bias. But one of the tubes concerns me as there is one of the internal wires that seems to turn red hot once the tube is turned on. The other thing is that the silver flash on the inside seems a bit lighter/whiter than the other. The outside of the silver flash is fine and there is no lightening of the silver. Grant Fidelity assures me these are just cosmetic issues, but I wanted to ask you guys if that is actually the case.

I've attached 3 photos. One showing the red hot wire, one showing the lighter silver flash and one showing the darker flash of the other tube.












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Topic - Problem (?) with new 845 tube - Erocka2000 07:35:06 11/16/16 (27)
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