4. Crap electrolytic capacitors. I've added a calendar entry to replace these in about 5 years :)Calling capacitors crap without knowing anything about them :palm:. Should be bottom of the barrel to be sold at Arrow and Distrelec/elfa. Every time I see someone calling them crap, that someone cannot explain why. And why would you need to replace them, there is no SMPS or heat to cause even cheap Chinese crap to fail. The only times I've seen them bulged was when general purpose series were put into SMPS or buck converter.
They are definitely shit. Notorious for Sound Blaster X-Fi failures. References via Google.Way overblown to call that notorious. One out of a very few mentions of Jamicon failing. And it's a single 220uF (isn't this too low for the purpose?) LOW ESR cap working in buck converter in between of the hot heatsink (main chip) and hot linear regulators around. Put that near to the graphics card and you have a very nice deathtrap. X-Fi has tens of other Jamicons around and not a single of them failing. I've seen 20x more faulty Nichicon (hello HN and HM series) and Nippon Chemi-con (KZG, KZJ) than Jamicon. Jamicon LOW ESR caps are not that common, to be fair. I have a few LCD monitors at my work which failed just after 2 year warranty ended and they are still going strong for 6 years after recapped with Jamicon WL.
One of the caps blew up in my Honeywell thermostat and sprayed electrolyte all over the membrane key switches and wrecked them! Didn’t check the vendor though at the time. Got replaced by a Honeywell remote one.(http://www.duntemann.com/badcaphoto.jpg)
I usually only use Vishay(BC/Sprague)/Rubycon/Epcos myself.
I agree. Electrolytic capacitors in a linear PSU without a heatsource nearby can last for decades!4. Crap electrolytic capacitors. I've added a calendar entry to replace these in about 5 years :)Calling capacitors crap without knowing anything about them :palm:. Should be bottom of the barrel to be sold at Arrow and Distrelec/elfa. Every time I see someone calling them crap, that someone cannot explain why. And why would you need to replace them, there is no SMPS or heat to cause even cheap Chinese crap to fail. The only times I've seen them bulged was when general purpose series were put into SMPS or buck converter.
Nice meter, HRC fuses are not uncommon on Chinese meters are they? I gave them on my Iso-Tech bench meter too. i love that dual display as well, so handyGW instek is not Chinese, it's a Taiwanese company and most of it's gear is made in Taiwan as well.
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FWIW, I picked up a couple of pieces of GW Instek gear from all the ITT surplus that hit eBay,Nice meter, HRC fuses are not uncommon on Chinese meters are they? I gave them on my Iso-Tech bench meter too. i love that dual display as well, so handyGW instek is not Chinese, it's a Taiwanese company and most of it's gear is made in Taiwan as well IME.
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Hello @BD139,
Thanks for the quick reply. More and more looking like it'll be back to the VC8145C for the job it'll be used for ( board repairs, not precision work ).
Just a few! :-DD
I wouldn’t bother with a bench DMM now. Invest in a Fluke 87V or Brymen BM867s and job done.
You can compare a couple of bench meters here: https://lygte-info.dk/info/DMMReviews.html (https://lygte-info.dk/info/DMMReviews.html)
Click on the "Type" column for sorting.
Just a few! :-DD
I wouldn’t bother with a bench DMM now. Invest in a Fluke 87V or Brymen BM867s and job done.
I genuinely prefer bench meters. Gone through enough hand-held units and still have a few as a fallback, but bench meters stay out of my way, don't turn off, have decent data connectivity and I can program them to switch modes from my software.
HP 34401A then :)
HP 34401A then :)
{ USB_DEVICE(0x2184, 0x0030) }, /* GwInstek GDM-843x */Ah that really pisses me off that they give different vendor IDs and stuff out for one chipset. Doing that on macOS is nigh on impossible due to the signing process. TTi are the same. Supposedly *ID via SCPI should be enough to determine what device is what but nope, no one understands the difference between protocol and transport >:(