I've had the materials for a long time, finally going to try doing a driver tonight. It's just a little 3" Malaysian Sony SS-MSP1 from a surround speaker from early 2000's.
Please make frequency response measurements before and after treatment. If you intend to take two-step process: first uniform coating of the whole cone and then XXX, please measure after each step.
Yes, as WF is a measurement presentation style and SW is a physical phenomenon. Do you att all master what you seem to lecture in...?
Most in this thread is bonkers...
//
58 years ago I got my first chisel-edged nib at my new school. they taught "italic" handwriting.
since then I've bought and used lots of these... for handwriting, which generally requires smaller widths on the order of 1mm, and for lettering which uses broader tips like those manufactured by Speedball.
my first pens were by Osmiroid but later "dip" nibs were by E.S. Perry and Mitchell.
I haven't bought these in a long time (arthritis had a say in that) so I don't know if they are still available or not.
on the other hand there are books available that describe how to cut your own chisel nib pens from a feather. Edward Johnson provided particularly clear instructions. ;-)
since then I've bought and used lots of these... for handwriting, which generally requires smaller widths on the order of 1mm, and for lettering which uses broader tips like those manufactured by Speedball.
my first pens were by Osmiroid but later "dip" nibs were by E.S. Perry and Mitchell.
I haven't bought these in a long time (arthritis had a say in that) so I don't know if they are still available or not.
on the other hand there are books available that describe how to cut your own chisel nib pens from a feather. Edward Johnson provided particularly clear instructions. ;-)
Dave,
I remember you mentioning in another thread that you ENAbl'd a Mark Audio MS11. Would you have any pics of that. When my work gets better that will be the first real drivers I ENAbl. Appreciate it!
Perhaps I should read the patent or some other "official enabl document" again, as it's been many years since I read a previous thread on this, but I would hope the materials used would be better specified. Here's something that's dare I say less critical than hifi drivers but the parts (such as the paint type and colors) are well specified:
https://botlanta.org/AHRC/MonthlyContest/cubequest/CubeQuestRules.pdf
Link taken from:
https://botlanta.org/AHRC/cube-quest
Waterfall is a representation of the multitude of resonances across the frequency range. These are mass-spring kid of resonances. Standing waves are not spring-mass, but rather related to speed of sound and border reflections.
Valid point. If you believe so, there is ignore button.
During the cleanup the FE127 box with the templates i was going to measure got cleaned away. As i go thru the quickly stashed in containers i will find them. For the A10.3 i do have one here (dented cone) i can measure. Imam pretty sure iu mknow where that is.
Cipriano — your work is getting neater but you don’t have enuff spots in your rings.
Hopefully the attached will help. The linear templates are for doing phase plugs. There is another special template for Fostex FFxx5wk dustcaps.
dave
I've got to remember - every 90 degrees I need 5 sets of 2 (times 2, top and bottom).
So how does it change border reflections by adding a very thin layer of paint on a surface that is wildly vibrating? Its way to a small an item to have what so ever impact n tanding waves. It should be quite bliss to any reasonably versed in the subject. What is the painted thickness - 1/10 of millimetre? Please as an exercise, what frequency does the corresponding wavelength of 0,001 meter calculate to?
Did I say bonkers? No, I'm not giving you the benefit of an ignore - it's a too easy way out.
//