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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: Re: Also the GEC and Mullard posted by robert on June 13, 2000 at 14:07:08:
That's a fascinating tidbit. I will re-examine my "Brimar" tubes this evening to determine if they fit your description of a Mullard. This also probably means that the tubes VTV photo'd and tested were Mullards, not Brimars, though indeed this may be a distinction without a difference. I also have a single Raytheon 6SN7GTA that looks just like my GTBs, with a very similar early 50's date code. I'll compare the two species of Raytheon, as well. But one thing still puzzles me; the GT types, which I assume includes VT231 and WGT as well, ARE supposed to differ from GTAs and GTBs in specs. In particular, the GTA and B have a higher permissible plate voltage and plate dissipation. Thus again, I wonder how identical tubes could end up with WGT vs GTB labeling (unless the W has the same significance as A or B in the nomenclature). In any case, thank you for your willingness to share your expertise.
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Follow Ups
- Re: Also the GEC and Mullard - Lew 15:12:53 06/13/00 (5)
- Re: Also the GEC and Mullard - robert 18:22:39 06/13/00 (4)
- Re: Also the GEC and Mullard - Lew 11:27:24 06/14/00 (3)
- Re: Also the GEC and Mullard - robert 13:43:25 06/14/00 (2)
- Re: Also the GEC and Mullard - Lew 11:13:37 06/15/00 (1)
- addendum on Raytheons - Lew 06:36:51 06/16/00 (0)
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