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Simple Answer; Sorry, but I don't .
- Some DIY explorations ( for you to pursure ) :
2420 :
- I would simply buy some 10-12mm thick boot-felt ( winter boot liners ) & cut it into a circle that is sized, to fully fill ( the full diameter of ) the back-cap ( of the 2420 ).
035ti :
- The ( touching ) foam performs a mechanical damping on the dome ( from the inside ) .
- This damping concept is similar to the function of the "damping pedal" on a piano ( which uses felt applied against the ringing strings ) .
- FWIW, a person can also use their finger to modify the ringing of the 035 dome or piano string ( or guitar string ) .
- My advice ( for the 035 ), buy some moderately spongy foam that crushes down by only a few millimeters ( when measured against the "inside curvature" of the 035 dome .
:)
Ah, it's good to know the original size ( ie; 10mm x 10mm x 3.5mm high )
Thank-you ! Pascal for those measurements .
:)
10mm (diameter?) x 3.5mm doesn't quite sound right in either dimension...
(pardon my reuse of this pic) perhaps 2x in both?:
Attachment 66114
Hi Grumpy,
Sorry for the bad information :crying:, when I first had a look at one of my 35Ti diaphragm kit it was in the half darkness of a room.
I just had a check and in fact I saw that in the middle of the square 10 mm x 10 mm black foam part there is a circular cut that makes a small cylinder like on your pic. That cylinder is about 5 mm diameter and exactly 3.5 mm thick.
But I didn't find the big cylinder like the one of your pic :confused:.
So I decided to open the second ( and never opened ) repair kit and it's the same than the first one : no big foam cylinder :( .
Pascal
Thanks for checking :) ... No idea what the smaller piece is for,
and have no official instruction sheet. :dont-know: