I have some B&W TW26 tweeters to rebuild. Came out of DM14s.
They have a coated silk dome of sorts and are a '1"' dome. However I've bought most variants of 1" /25.4mm silk domes off Aliexpress and all come up slightly small in diameter of the voice coil. They won't drop down into the magnet gap. The gap does measure slightly 'oversized' albeit hard to get a good reading as the magnet is taking charge over the vernier calipers!
Anyone have any insight into tmany correct aftermarket domes. ? I don't expect them to retain the factory parameters, but to get them working would be nice.!
They have a coated silk dome of sorts and are a '1"' dome. However I've bought most variants of 1" /25.4mm silk domes off Aliexpress and all come up slightly small in diameter of the voice coil. They won't drop down into the magnet gap. The gap does measure slightly 'oversized' albeit hard to get a good reading as the magnet is taking charge over the vernier calipers!
Anyone have any insight into tmany correct aftermarket domes. ? I don't expect them to retain the factory parameters, but to get them working would be nice.!
Put a piece of paper over the pole and with a sharp pencil rub the surface to get an exact image of the pole and gap. Measure that.
I have a plastic caliper in the garage. Probably picked it up from a $2/$5 table in a parts-store.
Ah, no, it is out-of-stock all over, not even listed on Empire's site.
There's this for a buck. Accuracy not real important if you only need to compare this to that.
https://widgetsupply.com/products/hawk-tm48003
Ah, no, it is out-of-stock all over, not even listed on Empire's site.
There's this for a buck. Accuracy not real important if you only need to compare this to that.
https://widgetsupply.com/products/hawk-tm48003
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Thanks.
So did a rubbing....not done this since school! The inner diameter is approx 24.6
None of the 25.4mm ones I have fit. They need to be slightly larger.
Does anyone know of a source for any?
Thanks
So did a rubbing....not done this since school! The inner diameter is approx 24.6
None of the 25.4mm ones I have fit. They need to be slightly larger.
Does anyone know of a source for any?
Thanks
Vifa made tweeters that might work if you can find diaphragms for them. There was a D26 and a D27 types that were 26 and 27mm respectively.
The speakerexchange.com has them. They list a 24.56 inner diameter which might be the ticket! Not cheap but if it works…