I've seen R-Core in some recent Chinese gear. Better isolation?
R-core transformer-DIBAO Transformer
r-core seems to capture the virtues of torroids and the neatness of windings of EI's...
Shipping will get you every time.
Price are good I guess it the shipping to the Philippines that get you ? I did enjoy the pictures of yout transformer on the Philippine Electronic Forum.i DIY my own traffos so i am not limited by commercial offerings...i can make them as big as i want.......but how i wished that this was next door to me...Silicon Steel C-Cores / Goss C-Cores for 60 Hz and 50/60 Hz Frequencies
I think all C-cores would be air gapped by construction, and thus more 'resistant' to main DC 'noise'
and I expect most would also be more carefully built
some toroids looks like crap really
cheap and fast manufactured
not all of course, but some I have seen looked that way
some years ago ordinary IE trafos were cheap, and toroids were expensive
but today its the opposite
funny thing is, our opinion or 'perception' also seem to have changed to the opposite
we still want most what we cant have
i am beginning to accumulate defective torroids....
how true, these same people ask questions just to reinforce their beliefs, and when they see answers contrary to their belief system, they run tantrums....😀
Are you referring to me? I have no preconceived beliefs on PTs at all because I'm a total newbie when it comes to this subject...thus, my questions.
unsolicited advice, skip on the mundorf's or the v-caps and invest in really good power traffos like the Hashimotos......
Thanks for the unsolicited advice, and I'm not being sarcastic. I happen to believe everything is important but to different degrees. With regards to tube amplifier components, OPTs are probably the most influential followed by output coupling caps. But in the end, it's the implementation that seems to be the most important. That's my unsolicited opinion.
I've seen R-Core in some recent Chinese gear. Better isolation?
Probably not. Normally primary and secondary and not split between the bobbins.
My prejudice goes towards EI, but occasionally a similarly rated toroid sounds better.
Having dozens of different transformers makes it very hard to build stuff consistently - now and then there are really bad sounding units and for no apparent reason.
I can see the attraction of using branded stuff like Hashimoto or Tamura for consistency alone. Sadly, there don't appear to be any documented subjective comparisons of this type on the net.
Are you referring to me? I have no preconceived beliefs on PTs at all because I'm a total newbie when it comes to this subject...thus, my questions.
not you....but in general....i hope you do not develop belief systems based on other people's say so.....no matter how famous they seem to be...😉
Probably not. Normally primary and secondary and not split between the bobbins.
My prejudice goes towards EI, but occasionally a similarly rated toroid sounds better.
Having dozens of different transformers makes it very hard to build stuff consistently - now and then there are really bad sounding units and for no apparent reason.
I can see the attraction of using branded stuff like Hashimoto or Tamura for consistency alone. Sadly, there don't appear to be any documented subjective comparisons of this type on the net.
it is not the subjective comparisons that matters, it is the fact that these traffos are well built, well engineered that is enough reason to buy them.....do not expect "magic" from transformers....they are used to serve a purpose...
if you understand how stuff works, you will not look into a transformer in that light....
Thanks for the unsolicited advice, and I'm not being sarcastic. I happen to believe everything is important but to different degrees. With regards to tube amplifier components, OPTs are probably the most influential followed by output coupling caps. But in the end, it's the implementation that seems to be the most important. That's my unsolicited opinion.
it is really hard when you develop a belief system....everything is relative......know your circuits....know your parts....know your design goals....and know your budget if you have one.....😉
it is really hard when you develop a belief system....everything is relative......know your circuits....know your parts....know your design goals....and know your budget if you have one.....😉
you forgot one....know your own limitation...if you have any 😀
hey, those raw C-cores really makes me want to try it 😉
but I know how it goes
copper wire all over the place
not doing anything else for months
and spending years to devellop winding tools
a strange hobby, but deserves respect
pictures Tony, show some of your stuff, please
but I know how it goes
copper wire all over the place
not doing anything else for months
and spending years to devellop winding tools

a strange hobby, but deserves respect

pictures Tony, show some of your stuff, please
Yes. There are various schools of audio 'design'. Some use maths and physics, some just listen; others look at the price tag and perceived rarity or require 'unusual' construction or materials (the weirder it is the better it must sound).tinitus said:some years ago ordinary IE trafos were cheap, and toroids were expencive
but today its the opposite
funny thing is, our opinion or 'perception' also seem to have changed to the oppossite
we still want most what we cant have
funny but in our local grown so called Audio Society whose membership are very rich millionaires, i was told that one member will change all his 8 power cords in his system simply because the rest of the membership concluded that one brand of power cables was better than the other brand in one listening session........one power cord costs U$2500 and he will have to replace all 8 of them....gets me thinking.....the power cord business is such a lucrative business, with unit costs of about U$20, gets you a return of U$2500.....
Agreed
I'll second the vote for Hashimoto power transformers, and also add that their filter chokes are on the same level. Also note that Hashimoto products are superbly made and well shielded. They're not cheap, but you buy them once and they'll last several lifetimes, provided you use them properly of course.
Regards, KM
unsolicited advice, skip on the mundorf's or the v-caps and invest in really good power traffos like the Hashimotos......
I'll second the vote for Hashimoto power transformers, and also add that their filter chokes are on the same level. Also note that Hashimoto products are superbly made and well shielded. They're not cheap, but you buy them once and they'll last several lifetimes, provided you use them properly of course.
Regards, KM
you hit the nail on the head when you said
and this is all about using the traffos properly and not because they could sound subjectively better......😀
use them properly of course.
and this is all about using the traffos properly and not because they could sound subjectively better......😀
feshly baked chokes...dual bay bobbins used for greater isolation between coils...
The hammer in your pic, love it. There's nothing that a hammer can't fix.
funny but in our local grown so called Audio Society whose membership are very rich millionaires, i was told that one member will change all his 8 power cords in his system simply because the rest of the membership concluded that one brand of power cables was better than the other brand in one listening session........one power cord costs U$2500 and he will have to replace all 8 of them....gets me thinking.....the power cord business is such a lucrative business, with unit costs of about U$20, gets you a return of U$2500.....
Definately don't have that kind of money to waste. I feel really guilty spending $250 for a power cord, but it does seem to make a difference. I can't imagine bigger voodoo than audiophile cable market though.
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