Bassman AB165 fuse?

landlocked

Joined: May 01, 2014
Posts: 18

Posted on Jun 09 2014 02:58 PM

Blew a fuse in my 67' Bassman AB165. Could anybody tell me what the correct rating fuse is to use? I found one that I had on hand that works, but it has a lower rating, I'm guessing this is a no-no, but just for the hell of it, can you manipulate the tone at all by using different fuses?

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DelRandall

Joined: Dec 13, 2009
Posts: 3
north county san diego

Posted on Jun 09 2014 03:53 PM

fuse are to protect your amp circuitry only. find the right one.

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Hammond101

Joined: Feb 22, 2013
Posts: 342
SoCal USA

Posted on Jun 09 2014 04:24 PM

The Schematic shows a 2 amp slo-blow for the AB165 Bassman.

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Keep it Drippy Brothers and Sisters!

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Jason

Joined: Aug 29, 2008
Posts: 245
Los Angeles, CA
United States

Posted on Jun 09 2014 10:55 PM

Just bought some for a Pro Reverb (which had a 3A in it - wrong fuse). Here ya go:

http://www.radioshack.com/product/index.jsp?productId=2103758

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The Counselors

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landlocked

Joined: May 01, 2014
Posts: 18

Posted on Jun 10 2014 05:17 PM

Thanks for the info!

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tubeswell

Joined: Sep 24, 2011
Posts: 1424
Wellington, NZ
Antarctica

Posted on Jun 11 2014 02:11 AM

The fuse probably blew for another reason (i.e.; other than just the fuse randomly blowing). Mains fuses are there to protect your amp from situations where the amp is drawing excessive current, like a bad output tube, or a failing filter capacitor. It probably would pay to get your amp checked by a tech

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He who dies with the most tubes... wins

Surf Daddies

Last edited: Jun 11, 2014 02:12:03

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landlocked

Joined: May 01, 2014
Posts: 18

Posted on Jun 11 2014 08:45 AM

I think it blew because I pulled the wrong preamp tube, while the amp was on..
If the right tube is pulled, the amp runs hotter and breaks up at lower volumes
I accidentally pulled the wrong one and the first note I played blew the fuse.

Last edited: Jun 11, 2014 08:46:38

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BJB

Joined: Jul 28, 2008
Posts: 413
United States

Posted on Jun 11 2014 03:59 PM

There is no 'right' tube to pull while the amp is still on.

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If it ain't broke, fix it until it is.

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landlocked

Joined: May 01, 2014
Posts: 18

Posted on Jun 11 2014 08:13 PM

i'll be turning the amp off when I pull tubes from now on

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vintagesurfdude

Joined: Nov 28, 2011
Posts: 795
Prescott Valley, AZ
United States

Posted on Jun 12 2014 08:45 PM

2 amp slo blow. Unless it's been scratched, out it's labeled on the back plate of the amp below the fuse holder. Which is true with all Fender amps. In fact, I think, labeling externally accessed fuses is a UL requirement.

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landlocked Joined: May 01, 2014 Posts: 18	Posted on Jun 09 2014 02:58 PM Blew a fuse in my 67' Bassman AB165. Could anybody tell me what the correct rating fuse is to use? I found one that I had on hand that works, but it has a lower rating, I'm guessing this is a no-no, but just for the hell of it, can you manipulate the tone at all by using different fuses? Top
DelRandall Joined: Dec 13, 2009 Posts: 3 north county san diego	Posted on Jun 09 2014 03:53 PM fuse are to protect your amp circuitry only. find the right one. Top
Hammond101 Joined: Feb 22, 2013 Posts: 342 SoCal USA	Posted on Jun 09 2014 04:24 PM The Schematic shows a 2 amp slo-blow for the AB165 Bassman. — Keep it Drippy Brothers and Sisters! Top
Jason Joined: Aug 29, 2008 Posts: 245 Los Angeles, CA	Posted on Jun 09 2014 10:55 PM Just bought some for a Pro Reverb (which had a 3A in it - wrong fuse). Here ya go: http://www.radioshack.com/product/index.jsp?productId=2103758 — The Counselors Top
landlocked Joined: May 01, 2014 Posts: 18	Posted on Jun 10 2014 05:17 PM Thanks for the info! Top
tubeswell Joined: Sep 24, 2011 Posts: 1424 Wellington, NZ	Posted on Jun 11 2014 02:11 AM The fuse probably blew for another reason (i.e.; other than just the fuse randomly blowing). Mains fuses are there to protect your amp from situations where the amp is drawing excessive current, like a bad output tube, or a failing filter capacitor. It probably would pay to get your amp checked by a tech — He who dies with the most tubes... wins Surf Daddies Last edited: Jun 11, 2014 02:12:03 Top
landlocked Joined: May 01, 2014 Posts: 18	Posted on Jun 11 2014 08:45 AM I think it blew because I pulled the wrong preamp tube, while the amp was on.. If the right tube is pulled, the amp runs hotter and breaks up at lower volumes I accidentally pulled the wrong one and the first note I played blew the fuse. Last edited: Jun 11, 2014 08:46:38 Top
BJB Joined: Jul 28, 2008 Posts: 413	Posted on Jun 11 2014 03:59 PM There is no 'right' tube to pull while the amp is still on. — If it ain't broke, fix it until it is. Top
landlocked Joined: May 01, 2014 Posts: 18	Posted on Jun 11 2014 08:13 PM i'll be turning the amp off when I pull tubes from now on Top
vintagesurfdude Joined: Nov 28, 2011 Posts: 795 Prescott Valley, AZ	Posted on Jun 12 2014 08:45 PM 2 amp slo blow. Unless it's been scratched, out it's labeled on the back plate of the amp below the fuse holder. Which is true with all Fender amps. In fact, I think, labeling externally accessed fuses is a UL requirement. Top

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Bassman AB165 fuse?