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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Fake Tubes/Bad Seller? posted by Ishmael on November 22, 2016 at 19:00:23:
From my entry in the recent National 7316 thread updated to reflect your RCA 7316:Per your RCA 7316. I researched 7316's years ago. They were designed by Amperex as industrialized ECC82's/12AU7's. I believe the only real 7316's were made by Amperex in the Heerlen, Holland plant. Thus it is likely any tube labeled as a 7316 not made in that location is not a real 7316. Of course as 7316's sell for top dollar there is always a possibility that some shyster might re-label an Amperex ECC82 as a 7316 so be aware when you purchase 7316's.
Per the above I doubt RCA USA ever made a 7316. It is worth examining your RCA 7316 for signs it was made in the Heerlen plant and not in the USA. If you look down on the tube from the top is there a ridge, like a raised thin straight line that goes from one side of the top thru the raised nipple to the other side of the top? Or possibly 2 such raised lines with one crossing the other at a 90 degree angle such that they divide the top of the tube into quarters?
If you examine the tube's glass envelope, near the bottom edge, are there any Philips ID codes? If so what are the codes? Such codes usually ID the specific tube type and version and when and where it was made. These details, among other things, can distinguish an Amperex ECC82 falsely labeled as a 7316 from a real Amperex 7316.
Note: During the production run of 7316's Amperex made 5 or 6 variations of the tube. Although all are supposed to be superb sonically they have different characteristics.
If your seller was old_guy_radiola that increases the odds your tubes are not as advertised. There have been a number of threads on the Asylum about this seller. From what I've seen about his ads I would be cautious about dealing with him.
Edits: 11/23/16
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Follow Ups
- RE: Fake Tubes/Bad Seller? - JazzDude 07:47:30 11/23/16 (0)
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