Rectifier fuse?

Axtman · 06-01-2009, 09:06 PM

Today I pulled a 15A 65V rectifier fuse out of an SWR bass amp that I am repairing. I have never seen nor heard of this type of fuse. Obviously some idiot put it in there. What is a rectifier fuse and where is it (correctly) used?

Enzo · 06-02-2009, 12:53 AM

Without a picture or a listing of any numbers on it, it is hard to say what you have. I myself have never heard of a "rectifier fuse."

A visit to google and i am still unsure. It looks to me like a rectifier fuse is an ultra fast fuse designed to protect semiconductors.

catnine · 06-11-2009, 03:32 AM

I can only speak on tube amps but I add a fuse between the rect tube and the B+ before the eyelet board and use a fuse holder with a 1/4 or 1/2 amp fuse which seems to be the lowest value I find available .

Enzo · 06-11-2009, 09:20 AM

catnine, welcome to the forum.

I don't think Axtman is looking to fuse his rectifier.

His SWR amp is solid state, and he is looking at a part called a "rectifier fuse."

The only thing that occurs to me is that these fuses are extra fast, and might be used to protect the speakers?

06-01-2009, 09:06 PM	#1
Axtman Member Join Date: Feb 2007 Posts: 50	Rectifier fuse? Today I pulled a 15A 65V rectifier fuse out of an SWR bass amp that I am repairing. I have never seen nor heard of this type of fuse. Obviously some idiot put it in there. What is a rectifier fuse and where is it (correctly) used?

06-02-2009, 12:53 AM	#2
Enzo Senior Member Join Date: May 2006 Location: Lansing, Michigan, USA Posts: 10,301	Without a picture or a listing of any numbers on it, it is hard to say what you have. I myself have never heard of a "rectifier fuse." A visit to google and i am still unsure. It looks to me like a rectifier fuse is an ultra fast fuse designed to protect semiconductors. __________________ Education is what you're left with after you have forgotten what you have learned.

06-11-2009, 09:20 AM	#4
Enzo Senior Member Join Date: May 2006 Location: Lansing, Michigan, USA Posts: 10,301	catnine, welcome to the forum. I don't think Axtman is looking to fuse his rectifier. His SWR amp is solid state, and he is looking at a part called a "rectifier fuse." The only thing that occurs to me is that these fuses are extra fast, and might be used to protect the speakers? __________________ Education is what you're left with after you have forgotten what you have learned.

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06-11-2009, 03:32 AM	#3
catnine Member Join Date: Dec 2007 Posts: 51	I can only speak on tube amps but I add a fuse between the rect tube and the B+ before the eyelet board and use a fuse holder with a 1/4 or 1/2 amp fuse which seems to be the lowest value I find available .

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