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Re: K100-2 Hiss but no other output [message #21227 is a reply to message #21116]

Wed, 20 August 2014 23:10

daveobergoenner@gmail.com
Messages: 104
Registered: January 2007
Location: Missouri

Senior Member

Agreed...just about any caps from Panasonic are very good quality. Matsushita has always made their own electrolytic paste, and as a result have never suffered the expanding cap syndrome so common in PC's.

Bill, you just haven't lived till you've powered-up a Harris FM exciter with about 50 of the darn things on-board, and a bunch of them let go, and the magic smoke all pours out at the same time. Had to evacuate my shop for over an hour. It still smelled like rotten eggs and burning garbage in there a week later.

Thus began my hatred of tantalum caps! I can't tell you all the grief they have caused me. Broadcast gear from the 70's and 80's is loaded with them.

Here's a quote from just one (of MANY) sites I found tonight posting others techs hatred of them...
"The current flow can generate a good amount of heat, which can start an exothermic reaction where the tantalum and manganese dioxide act as a type of thermite. Yes, that capacitor, with enough energy, becomes a tiny thermite grenade. The flame from an exploding tantalum capacitor is usually enough to ruin nearby circuitry. The worst part is that they often fail short." I've had them burn holes right through the circuit boards and vaporize traces.

I really don't think I want "thermite grenades" in my Kustom (or the smell)...Whew! Smile

Dave O.

Dave 0 Wall-O-Bass
Webpage - <a href="http://webpages.charter.net/daveobieone/" target="_blank">http://webpages.charter.net/daveobieone/</a >

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[Message index]

		K100-2 Hiss but no other output By: Jerrybass1955 on Mon, 11 August 2014 09:45
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Mon, 11 August 2014 11:22
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Mon, 11 August 2014 11:30
		Re: K100-2 Hiss but no other output By: stevem on Mon, 11 August 2014 12:59
		Re: K100-2 Hiss but no other output By: C4ster on Tue, 12 August 2014 08:40
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Tue, 12 August 2014 09:18
		Re: K100-2 Hiss but no other output By: stevem on Tue, 12 August 2014 10:32
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Tue, 12 August 2014 10:55
		Re: K100-2 Hiss but no other output By: C4ster on Tue, 12 August 2014 11:54
		Re: K100-2 Hiss but no other output By: stevem on Tue, 12 August 2014 12:08
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Tue, 12 August 2014 12:38
		Re: K100-2 Hiss but no other output By: stevem on Tue, 12 August 2014 15:37
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Tue, 12 August 2014 21:05
		Re: K100-2 Hiss but no other output By: stevem on Tue, 12 August 2014 21:13
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Thu, 14 August 2014 10:35
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Fri, 15 August 2014 14:12
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Fri, 15 August 2014 22:47
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Sat, 16 August 2014 00:30
		Re: K100-2 Hiss but no other output By: chicagobill on Sat, 16 August 2014 03:07
		Re: K100-2 Hiss but no other output By: stevem on Sat, 16 August 2014 09:15
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Sat, 16 August 2014 21:00
		Re: K100-2 Hiss but no other output By: chicagobill on Sat, 16 August 2014 21:32
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Tue, 19 August 2014 12:04
		Re: K100-2 Hiss but no other output By: chicagobill on Tue, 19 August 2014 12:49
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Tue, 19 August 2014 22:22
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Wed, 20 August 2014 09:58
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Wed, 20 August 2014 12:02
		Re: K100-2 Hiss but no other output By: chicagobill on Wed, 20 August 2014 13:39
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Wed, 20 August 2014 23:10
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Thu, 21 August 2014 13:52
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Thu, 21 August 2014 16:45
		Re: K100-2 Hiss but no other output By: stevem on Fri, 22 August 2014 06:51
		Re: K100-2 Hiss but no other output By: Jerrybass1955 on Fri, 22 August 2014 11:44
		Re: K100-2 Hiss but no other output By: daveobergoenner@gmail.com on Fri, 22 August 2014 15:35

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