Hello, I have a question about JMX brand caps. I was taking apart an SL-Series Cerwin Vega speaker when I noticed that they use the JMX in their speaker crossover network. Are these caps any good?? I was just curious about what you all thought and if you recommend a better brand for a speaker crossover. I logged onto their website and it appears they supply caps to some reputable electronics companies one of which is Sony. Thanks everyone for any input you can provide, Kirk
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Re: JMX Brand Caps
Here are some screenshots to help with my question...are they any good?? Or just a standard industry cap? Thanks...Attached Files -
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Re: JMX Brand Caps
Never heard of JMX but if it's one of their polypropylene film caps then it might be ok, but if it's electrolytic, then you might be better off replacing it (assuming you're having issues with your speakers).
IIRC, Some companies will say they supply caps to big brands to make themselves look better to potential customers.I'm not a expert, I'm just doing my best.Comment
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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,... -
Did a "gross" impedance measurement of the inputs on my polk csi40 center channel speaker. It showed about 4ohms. Seemed kind of low. There are two midrange drivers and one twitter ... 2 way system.
All measurements at the drivers seem ok in the 4 - 6 ohm range (the two mid range are in series).
Anyway, in the crossover on the tweeter side, there are two caps in parallel basically leaving an inductor .... "nice simple setup", especially when no schematics around. The question is finding a replacement. One is a TI .47uf met 100vdc while other is a 9.1uf... -
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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