The most interesting thing about this design is that it is a dipole in a sense because it has two ribbons in series, one firing forward and the other backwards.
Of course they need new ribbons but that isn't an issue since they can easily be replaced. Below are a few other shots for google to find so there is at least a bit of info on these tweeters out there for people to find.
Now why is Dave suddenly interested in ribbons? I'm not really, but I am interested in magnets and given a little coaxing I tend to take on some crazy projects just to see what happens. In the case of ribbons, the magnet of choice seems to be neodymium. I'll be honest and say that in my limited direct comparisons, I do not like the characteristic sound of Neo magnets. Dick chose ceramic out of the scale of economy and would have much preferred to use alnico5. Now he is excited about the possibilities of what he thinks may be the best magnet type of all. Time will tell where this project goes so stay tuned.
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Oooooh - cool!
ReplyDeleteGreat blog!
ReplyDeleteDo you know hard these are to repair . i picked up a set that has very low out put sound and missing one set of the ribbons ? Can they be home made
I ment are they difficult to work on. Since mine aren't producing much sound
ReplyDeleteHi, I made new ribbons for mine and a set of t-1's. I used a piece of rack and pinion gear and regular aluminum foil.
ReplyDelete