I am just stating what I witnessed, working as an engineer and heard from reliable sources, that lived in China and have immigrated. Like I say to my friends, there is talking about the Chinese, as you witness in the culture in North America and then there is working for them for 5 years.
Can anyone say they have done the same? then we can discuss at that level.
The co. brought in ballasts, under cut Philips making there own ballasts, you may have hard of them, Advance Transformer, all to undercut the next guy. Same with panasonic bathroom fans, can you believe the co. could make a CFL ballast cheaper than Matsushita Electric? we are counting pennies here.
Yes, I do understand the debt/economic issues, ( BTW, I do live off of the stock markets/bonds, DOW,NASDAC,TSE) but it has little/nothing to do with if you "producing crap" or not. It is because of an adjustment in workers wealth, in part due to muti-nationals co's, that I now get my existence off off, it is viscous circle, sorry to say, but this is capitalizm.
I was quite surprised that my new Tektronix scope,DPO4034 was mfg in China, go figure.
You know when I bought my house in 1990, interest rates were 10.5%, so I took a 2 year, at renewal time they were 13%, so I took a 1 year, they have fallen ever since. People are like gov's they are not good money managers!!
I worked with some very nice US EE's, I asked a nice EE one time, at the xmas party in Colorado, how does the US do it?, he said Rick, you have understand it is a war based economy, so I have stopped asking.
Ya don't know what to say, I just listen to it (TPA3100D2) through my nice speakers all day and it ain't tiresome, so I can tell, I go to bed at the same time
Still workin on if it is the culprit with my AM radio being screwed up. Also workin on TPA3116/18 design, one day, it is on the list.
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Radiosmuck & others,
Makes you wonder what would be left of North America/world, if interest rates ever got back what they were in the 80's. I guess this is why the gov's are eating up so much debt, borrowing from the Chinese and others in order to keep rates low?
These TI class "D" amps are really nice, makes you wonder why anyone needs ppm levels of THD?
Yes a nice box would be fitting. A few have shown some really nice work.
Makes you wonder what would be left of North America/world, if interest rates ever got back what they were in the 80's. I guess this is why the gov's are eating up so much debt, borrowing from the Chinese and others in order to keep rates low?
These TI class "D" amps are really nice, makes you wonder why anyone needs ppm levels of THD?
Yes a nice box would be fitting. A few have shown some really nice work.
I finally got around to picking up some different inductors.
In one of my TPA3116s, I’ve been using some 10uH inductors that I originally bought on Ebay to put in a TA2020 and they sounded quite a bit better than the stock inductors in the 3116 but they ran quite warm and caused the chip to run warmer too.
652-2100HT-100-V-RC
Today I swapped them out for these Bourns parts (Mouser -652-2100HT-100-V-RC).
I think they are well worth the 9 bucks and I highly recommend them!
They are physically larger but sound great and they don’t heat up like the others I bought on Ebay.
Next will be to try these inductors from ICE (Mouser - 911-1D14A-100M) and hear how they compare.
The TPA3116D2 continues to impress me.
.
In one of my TPA3116s, I’ve been using some 10uH inductors that I originally bought on Ebay to put in a TA2020 and they sounded quite a bit better than the stock inductors in the 3116 but they ran quite warm and caused the chip to run warmer too.
652-2100HT-100-V-RC
Today I swapped them out for these Bourns parts (Mouser -652-2100HT-100-V-RC).
I think they are well worth the 9 bucks and I highly recommend them!
They are physically larger but sound great and they don’t heat up like the others I bought on Ebay.
Next will be to try these inductors from ICE (Mouser - 911-1D14A-100M) and hear how they compare.
The TPA3116D2 continues to impress me.
.
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The top set in this first photo, and they are also shown installed in this second photo. The lower set in the first photo are the inductors from Ice Components.
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KJA,
Very interesting finding. Can you tell me how did you desolder the original inductor
? Cannot even see the solder joints since it is covered by the inductors.Regards,
KJA,
Very interesting finding. Can you tell me how did you desolder the original inductor
Regards,
You can see the edge of the pad on both sides.... I was able to remove them unscathed but be willing to sacrifice the part to maintain the integrity of the traces.
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The ones from Mouser are listed as Class D filter inductors and have adequate current ratings...looks good.
What I would like to see in the data sheets is the self resonance frequency of these inductors.
I would not like to use an element that is acting like a capacitor in a Class D filter.
Well, you've found the best output inductors there is for the TPA3116. They are absolutely perfect.
They seemed like a good choice to me too, but there are so many 10uH inductors to choose from. Have you used these before?
They are used in the amp10 from 41hz. The only drawback is that they're through-hole which makes it a little annoying when designing an amp meant for having components only on one side and the reverse full ground plane thermal glued to a heatsink.
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