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cooky
25-01-2020, 10:14
I know it's a fairly common practice to remove the dust caps or not bother installing them after a recone and was wondering where they all go?
I'm after a pair of the 4.5 inch nylon mesh ones from the K/DU models(3128/3828 etc).
The cloth HPD ones are still available from that man on eBay but scrap or mint would do....
Ta

cooky
28-01-2020, 17:40
None, nada?

Holmster
24-06-2020, 20:24
When I sold my K3808 project, put them in the cabs for the buyer to use at later point.. Think others just throw them out..

cooky
28-06-2020, 08:51
I live in hope.

Pharos
28-06-2020, 13:36
There must be numerous types available on the web, I would go for the coarsest mech you can find, and nylon is likely to attenuate HF less than cloth/fibre types.

cooky
20-07-2020, 11:32
Genuine pair now sorted, thanks.

kennystone
22-07-2020, 06:56
I have heard the opinion that without dust caps you need to blow off compressed air every year to avoid accumulation of dust. Because dust can become a conductor and cause problems.

walpurgis
22-07-2020, 07:11
I have heard the opinion that without dust caps you need to blow off compressed air every year to avoid accumulation of dust. Because dust can become a conductor and cause problems.

Not so. Dust will not build up in the voicecoil gap as the oscillations of the cone produce a pumping, bellows like effect blowing air back and forth through the coil area.

Dust accumulating on the cone surface can be brushed off carefully with a soft paintbrush or makeup brush. Use of compressed air is not a good idea.