Got a new amp for my system. It's an Adcom GFA-545. Conservatively rated at 100wpc x 2.
The top component is the amp, of course
The top component is the amp, of course
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Ludicrous gibs!
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Re: Now THESE are some caps...
Manufacturer of the caps is Towa? Fujitsu Towa, I believe http://www.faradnet.com/company/c0001241.htmLudicrous gibs!
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Re: Now THESE are some caps...
those are tiny.wait till you see the ones i work with on motor drives.
each the size of 3 pound coffee cans and in banks containing up to 100 of them.Comment
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Re: Now THESE are some caps...
Crimped eyelets on solid gauge wires is big no no! Mechanical failure soon comes up because solid wires does not conform to the crimp readily. They are designed for stranded wires only.
Best design is busbars and screws for capacitors, can be rebuilt to this configuration.
By the way, note the star grounding system. That's excellent.
Cheers, WizardComment
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Re: Now THESE are some caps...
wonder if the mfr was smart enough to solder the crimps too.Comment
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Re: Now THESE are some caps...
Is there any real reason why manufacturers use torroid transformers on amps?
Do they have better characteristics than iron core transformers?Elements of the past and the future combining to make something not quite as good as either.Comment
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Re: Now THESE are some caps...
Pics or ban!!Originally posted by kc8adu
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Re: Now THESE are some caps...
i will take some pics next time i am onsite there.Originally posted by TopcatPics or ban!!
next time will be the first severe thunderstorm outbreak of spring.
they get nailed several times a year.Comment
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Re: Now THESE are some caps...
As far as I know, they just tend to be quieter, and higher output than iron core.Originally posted by Krankshaft
From Wiki, I found this - The magnetic flux in a toroid is largely confined to the core, preventing its energy from being absorbed by nearby objects, making toroidal cores essentially self-shielding.Ludicrous gibs!
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Re: Now THESE are some caps...
Insane! How many microfarads are those each? I read on a site that a typical rule-of-thumb for stiffening vs. wattage is .5F per 500W, which is the same as 1000uF per 1W, correct?
This article explains why, at least the author feels, they are better: http://www.tnt-audio.com/clinica/ssps1_e.htmlOriginally posted by KrankshaftLast edited by Logistics; 01-12-2009, 01:15 AM.Presonus Audiobox USB, Schiit Magni 3, Sony MDR-V700Comment
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Re: Now THESE are some caps...
Hehe yea, those are awsome kc8adu
A local sawmill company uses such caps to increase their PFC factor
If it falls below a certain value they get a hefty price increase
They got replaced pretty got damn quickly when one of their power bills was suddenly $5000 higher than it usually is!
Turns out the bank had failed, nice of the power company not to inform them too!"The one who says it cannot be done should never interrupt the one who is doing it."Comment
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Re: Now THESE are some caps...
So are theseOriginally posted by dood
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Re: Now THESE are some caps...
Now we are talking about THOSE. This was commonly found in vintage computers that filled racks as well. And there were some in early 70's computer boxens.
Cheers, WizardComment
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I know I've been a little scarce lately (like the last 2-3 years), but I'm still here and still doing my thing with fixing PSUs.
For today's considerations, I have a Seasonic B12 BC-550 [A551bcafh] 550 Watt ATX power supply for you (click on links for full size images).
https://www.badcaps.net/filedata/fetch?id=3591771
https://www.badcaps.net/filedata/fetch?id=3591772
It's a modern ATX unit with fixed (non-modular) cables and an 80-plus bronze certificate. Here's the label:
https://www.badcaps.net/filedata/fetch?id=359177... -
Hello,
First, I am a complete noob with high voltage stuff. I'm learning, but I need help by someone looking over my shoulder.
I recently came into posession of a Heathkit IO-4205 5MHz Dual Trace Oscilloscope. The documentation is copyright 1978. I'm told it works.
I opened it up to check the caps before I applied power, and found the following black caps and wanted to know what they were. They are on the power supply board. I was able to read the name and model and came up with, "Nytronics 162J-1, 0.1uF, 20% tolerance, 2000VDC."
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Hello!
I have two projects on my work bench. One is a friends dead JBL Xtreme speaker with a blown voltage regulator and corresponding bulged and shorted cap. That cap has clear markings so I know what replacement I need for it.
The other project however is a whole different deal. It's a Zoom 9000 guitar effect from the 90th that has developed a devil hound howl when there is no input from the guitar. I'm guessing caps problem. So, since I don't really use this effect anymore I thought it would be a perfect project to learn on.
I have studied the board and... -
I'm trying to repair two old VCRs, they both have bad caps. One has leaky ones, the other would barely run until I subbed in some caps from another power supply I had laying around (though they are the wrong values). This vcr works for an hour or two, but then the power supply starts whining and the picture gets lines in it. I didn't replace all the secondary caps, so another voltage might still be problematic, or the values I used are too far off.
I've been on mouser and digikey but the options are a bit overwhelming. I just need some new ones that will work. They don't need to be top quality,... -
Good evening
I recently aquired a rev 1.1 Gigabyte 60XT, and was suprised of the amount of leaking caps for a motherboard of the P3 era. Especially the way the 330µf caps seems like the housing discolored even.
Now, there are some 3300µF 6.3V KZG series around the CPU. Would it be OK to replace them with something like EEUFR1A332 ? (Panasonic FR 3300µF 10V). Or was this board designed around very low ESR caps?
But I was also suprised about the bigger boys, which are 330µF 25V.
Could it be they used 25V caps because they were cheaper / available at that time?...
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