K400B 5 [message #22033] |
Mon, 29 December 2014 21:35 ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
Iowa Boy
Messages: 767 Registered: June 2014
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Senior Member |
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While cleaning the inside of my amp tonight, I noticed that ......whatever it is, the wire is broken on it. It looks like a small cylinder that has two wires that are in an insulated tubes and the cylinder....the size of an eraser head, snaps into a clip on the base plate. There is another cylinder like this on the other side of the amp as well. What is it and where do I get a replacement for it? Appreciate your help.
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Re: K400B 5 [message #22036 is a reply to message #22033] |
Tue, 30 December 2014 07:47 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
stevem
Messages: 4764 Registered: June 2004 Location: NY
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Senior Member |
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I use a NTE brand replacement.
A NTE5809 diode.
To work as intended it needs to be mounted as I will describe as the stock push in clip is too big and unusable.
First solder on some wire for more lead length and also heat shrink the rest of the diodes lead all the way up to the body.
What I do is capture the diode under the original clip, but you need to place electric tape on the bottom of the clip and the top of the heat sink bar such that should the diode move around it does not short out.
Another option is to mount these as Peavey does which is to have the diode body sit in a close fitting hole drilled into the heat sink bar, its your call!
JUST NOTE THAT WHEN THIS DIODE BREAKS ITS LEADS AND AS SUCH GOES OPEN IT MOST TIMES RESULTS IN A BLOWN OUTPUT STAGE!!!
[Updated on: Tue, 30 December 2014 07:50] Report message to a moderator
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Re: K400B 5 [message #22048 is a reply to message #22033] |
Fri, 02 January 2015 06:34 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
stevem
Messages: 4764 Registered: June 2004 Location: NY
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Senior Member |
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Yes, I know! that is the way they look these days and now you may better understand why I suggested how to mount it and insulate it, and why I also passed along how other amp manufactures mount this new type of diode when used for a thermal reference!
You may still find these from a electronic surplus supplyer, but you may have to buy 10 or more just to be able to get one from them!
[Updated on: Fri, 02 January 2015 06:38] Report message to a moderator
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Re: K400B 5 [message #22057 is a reply to message #22033] |
Sat, 03 January 2015 19:51 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) |
Iowa Boy
Messages: 767 Registered: June 2014
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Senior Member |
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Thanks for the help.....thinking I'll order extra of these as well since I can't get the light bulbs and the diodes from the same supplier.
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