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Upgrading \ Changing Toroidal transformer
Upgrading \ Changing Toroidal transformer
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Old 19th October 2019, 10:21 PM   #11
FauxFrench is offline FauxFrench  France
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I guess that for three decades, Asian wafer houses have produced more semiconductors than in the West. Japan evidently, Singapore, Philippines, Malaysia, China - most brands produced there. Western designs, Eastern production.

NB: I would not touch the amplifier board you have right now. If you really want to experiment, you can still get simple TA2022 DIY amplifier boards for modification. Only when you are absolutely certain of the result, I would see if that improvement could be fitted in.

Last edited by FauxFrench; 19th October 2019 at 10:27 PM.
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Old 19th October 2019, 10:30 PM   #12
alou is offline alou  Europe
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Yes i agree thats why in these days we have the good Asian makers vs the cheap ones because almost 80% is made there.
Eventhough Japan is in Asia of course i woudnt add it to the rest ,they make products from th 50's.Even them they now make their cheap stuff in the rest of Asia and have no difference from entry level Chinese products only better quality control.
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Old 19th October 2019, 10:50 PM   #13
FauxFrench is offline FauxFrench  France
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Japan is somewhat different from the rest in that they started before the other and now make a large part of the designs.
The reason why I mentioned the other countries was that for 30 years it has been difficult to find an IC with (made in) USA or EU written on it. Most of what I have seen on western brand names was one of the Asian countries. Thus, their semiconductor production standards are up to level, for a start probably with production equipment of western or US origin.
Today, in particular China is also presenting designs that seem up to the best standards but then they are no longer inexpensive.
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Old 19th October 2019, 10:51 PM   #14
alou is offline alou  Europe
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Totally agree.
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Old 20th October 2019, 04:49 AM   #15
kodabmx is offline kodabmx  Canada
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Upgrading \ Changing Toroidal transformer
The shape of things to come:
Anyone know what it says?
Attached Images
File Type: jpg 2019-09-28 13-31-30.jpg (586.2 KB, 80 views)

Last edited by kodabmx; 20th October 2019 at 04:53 AM.
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Old 20th October 2019, 07:30 AM   #16
FauxFrench is offline FauxFrench  France
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"Made in China, for Chinese"
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Old 20th October 2019, 03:37 PM   #17
alou is offline alou  Europe
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Well its a 1.4 billion market!
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Old 22nd October 2019, 12:00 AM   #18
Mark Tillotson is offline Mark Tillotson
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Ensure the secondary side of the transformer has a route to mains earth, I've seen too many dodgily insulated chinese transformers, I had one that with primary and secondary windings touching. I noticed because of the bizarre noise spikes on the output, rather than by being electrocuted fortunately.
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Old 22nd October 2019, 07:40 AM   #19
alou is offline alou  Europe
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I think it is ok on that subject ,i had the transformer removed when i took the board out to have a look at it.The winding are not touching and the device also has ground to chassis (bare chasis paint is removed there).
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Old 28th October 2019, 05:06 AM   #20
nattawa is offline nattawa  Canada
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Quote:
Originally Posted by kodabmx View Post
The shape of things to come:
Anyone know what it says?
it reads "copyright reserved".
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