Where might I find this fuse?

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Where might I find this fuse?

Postby nolabass » Sun Mar 06, 2011 12:17 pm

Any sources? Full compass list it but does not have one in stock.
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Re: Where might I find this fuse?

Postby noahvale » Sun Mar 06, 2011 4:59 pm

More info would help, such as what Compass calls it. I bet you can get it from www.mouser.com
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Re: Where might I find this fuse?

Postby nolabass » Mon Mar 07, 2011 10:44 am

M89 24V 50W XENON ULTRA

This is what TurboSound is saying I need.
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Re: Where might I find this fuse?

Postby Ken Baker » Mon Mar 07, 2011 3:28 pm

Pete, if you're talking about a tweeter fuse, that's a lightbulb working as a 2 amp fuse. Manufacturers many times use lightbulbs for this application because they have slo-blo characteristics.

If this is the intended usage, any 50W 24V xenon or halogen bulb that uses the same pin arrangement should work. I just did a quick check of Lowes and Home Depot and they carry bulbs that may do the trick. The one at Lowes is less than $5.00 - this one. Take the old one with you to make sure that the pins and physical size match up. Looks to be a common bulb type.

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Re: Where might I find this fuse?

Postby noahvale » Tue Mar 08, 2011 5:41 am

What you are looking for is an auto bulb.

Do a Google search for 50 watt 24 volt xenon bulb. Google is your friend:

http://www.google.com/search?q=50+watt+ ... 3786b8478e
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Re: Where might I find this fuse?

Postby Ken Baker » Tue Mar 08, 2011 9:49 am

No, Butch. That is a T4 plugin halogen bulb used for interior/exterior accent and general lighting. It is also a 50 watt / 24 volt bulb. An auto bulb would be 12 volt.

Here's a Google search link using the spec that Pete supplied above.

http://www.google.com/search?q=M89+24V+ ... =firefox-a

Both 1 amp and 2 amp are normal fuse sizes for tweeter protection. Using Ohm's Law, where P/E=I. 50 (watts) / 24 (volts) = 2.08~ (amps). If those were auto bulbs the current would be a little over 4 amps, which would fry a tweeter in a transient. The important point here is that it is a resistive load with proper (or very close) specs.

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Re: Where might I find this fuse?

Postby Rob Francis » Wed Mar 09, 2011 7:23 pm

Home depot garden center has em. . . . or did a week ago
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Re: Where might I find this fuse?

Postby randall » Mon Apr 04, 2011 3:43 pm

The reason light bulbs are used as fuses in audio circuits is for their current limiting properties. A fuse just blows when it reaches it's limit, but a lamp uses up current by converting the energy to light as it approaches it's limit.
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