TO-3 SYMASYM - Page 77 - diyAudio
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Old 17th September 2013, 05:36 AM   #761
RKH is offline RKH  United States
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Thanks Rudi,
I will check more methodically and see if I can find the problem.

Regards,
Ryan
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Old 17th September 2013, 06:27 PM   #762
rephil is online now rephil  Europe
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Location: In Belgium at the French border.
Default One more SymAsym is running

Hi Rudi,

Thank you for these wonderful SymAsym boards I have got from you !

The first channel did run at once, following your procedure of course, without any problem, and I have measured the DC value at the output as <-1mV ... . I did not expect to get a negative number, but it is so small that I am happy with it.

I will now populate the second board and when all will be running OK, I will post some photography of the baby. But before I will hear some music with both channels running. I think that my friend will be more than happy with such a good amplifier !

The explanations you have provided to all of us were outstanding and really a very good and friendly help as every problem that might occur is solved inside.

Thank you Rudi !

Best regards

rephil
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Old 18th September 2013, 07:05 AM   #763
rephil is online now rephil  Europe
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Hi Rudi,

Sorry, I was so euphoric yesterday due to the good results with my build that I have written the following : "DC value at the output was <-1mV", it should obviously be understood that "the absolute value was and remained <1mV" ...

I should sometimes follow your suggestions with more care , using a smaller bottle of very good italian wine in order to perform what you did write in your "Benutzerhandbuch" (Instructions for use) : "Yetzt einen kräftiger Schluck Whisky (oder Weissbier) - und Power On" (Now a huge draught of Whisky (or white beer) - and Power On) ... I had neither whisky nor white beer at hand, so as always in diy I used what I had home - italian wine -, willing more than enough help ...

Thank you again Rudi : I am more than happy with this SymAsym.

Best regards

rephil
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Old 18th September 2013, 02:52 PM   #764
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Rephil, thank you for your kind words!

I know myself that the SYMASYM is a real gem: easy and uncomplicate to build, it does not need any fancy
components, and it sounds amazingly well, especially, if you you have gone for the TO3 - version.

I have ordered a small couple of my current SYMASYM-TO3 - PCBs a minute ago (see attached image).
I have 3 PCBs left.

If anybody wants to have these 3 PCBs: send me a PM.
I will offer to this one an additional PCB as well. SURPRISE!

Best regards - Rudi_Ratlos
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Old 19th September 2013, 07:54 AM   #765
rephil is online now rephil  Europe
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Quote:
Originally Posted by Rudi_Ratlos View Post
Rephil, thank you for your kind words!

I know myself that the SYMASYM is a real gem: easy and uncomplicate to build, it does not need any fancy
components, and it sounds amazingly well, especially, if you you have gone for the TO3 - version.

I have ordered a small couple of my current SYMASYM-TO3 - PCBs a minute ago (see attached image).
I have 3 PCBs left.

If anybody wants to have these 3 PCBs: send me a PM.
I will offer to this one an additional PCB as well. SURPRISE!

Best regards - Rudi_Ratlos
Hi Rudi,

You got mail.

rephil
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Old 19th September 2013, 08:52 AM   #766
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Gentlemen, the SYMASYM-TO3 - PCBs are no longer available.

Best regards - Rudi_Ratlos
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Old 23rd September 2013, 08:45 PM   #767
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Hello,what modification's i need to make to the amp if i want to put another pair of mjl and my power suply is +- 56vd dc(2x56v dc),i made some schematics to see if they are good or not,thank you !

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Old 24th September 2013, 08:32 PM   #768
rephil is online now rephil  Europe
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Hi Rudi,

I could not resist to it ... I wanted to hear what kind of quality of the music could be produced by the first channel I have built of the SymAsym .

It is fantastic with good bass frequencies, sweet high, it is also very powerful . All that gives really great satisfactions ... . Thank you Rudi for this SymAsym TO3 , I enjoy the music, and my friend that will get the amp has no idea of how good this power amp is .

BTW, it is time - you should do it please - to organise another group buy for this outstanding amp . I understand now why some of us did buy so many boards from you : it is the best amp that I have here ! I didn't know ...

The only drawback is the THD ... well the spectrum has mostly only the 2nd and 4th harmonics, but for my taste, I should like to get also "wonderful numbers" for the THD ... But the sonics resulting is really top notch! I don't want to hear anything else ...

Thank you again Rudi .

Best regards

rephil
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Old 4th October 2013, 07:08 AM   #769
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Hello everybody!
Does someone sell his masterpiece (TO3 - Symasym)?
Thanks,
Cristi.
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Old 7th October 2013, 10:59 AM   #770
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Thank you for help, Rudi.
Wish you the best,
Cristi.
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