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In Reply to: Re: 12DW7's or 7247's posted by Ivan303 on June 25, 2002 at 18:36:33:
Note also that a very common 12DW7/7247 is the Matsushita from Japan, and that it is a Mullard clone and also boasts the cross-seam pattern on the top of the glass!
This valve is far inferior sounding to the Mullard, but I'll bet dollars to doughnuts that it is quite superior to the post-communist trash from Ei & JJ...
The giveaway is the "jaunty" crooked angle of the "flash" itself, which is much straighter on the Mullards, being quite perpendicular with the internal anode structures. Ditto the getters themselves. On the real Mullards, they are quite parallel with the mica spacer underneath them. On the Matsushita, the getter is canted up on an angle, resulting in the slightly lopsided "flash".
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Follow Ups
- Re: 12DW7's or 7247's - Joe Rosen 01:06:39 06/27/02 (6)
- Hey, great to hear from you, Joe! - Ivan303 05:59:16 06/27/02 (5)
- Re: Hey, great to hear from you, Joe! - Joe Rosen 03:27:21 06/28/02 (4)
- Re: Ever try spinning(i.e. indoor exercise bike)during the winter months - Russ57 11:39:17 06/28/02 (3)
- Re: Ever try spinning(i.e. indoor exercise bike)during the winter months - Joe Rosen 16:27:35 06/28/02 (2)
- Re: Ever try spinning(i.e. indoor exercise bike)during the winter months - Russ57 07:26:56 07/01/02 (1)
- Re: Ever try spinning(i.e. indoor exercise bike)during the winter months - Joe Rosen 04:46:37 07/07/02 (0)
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