Dx Blame ST - Builder's thread - post pictures, reviews and comments here please.

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I got the impression from a thread, maybe not this one, that there were some restrictions of purchase for AMERICANS for some products from Brazil.

Short of that I would like to know what total cost of boards shipping etc.

Thanks for your thoughts...
 
Krisfr, I thinks you misunderstood the posts. As I recall, Carlos said there was a GB for the BLAME specifically for Brazilians. I asked Carlos for some boards and he referred me to Rudi who had another GB, he was kind enough to include me on the GB considering it was closed by the time I got in contact with him.

I remember reading that someone took offense because the GB was strictly made for Brazilians thereby suggesting to build something else. It is all a misunderstanding and no restrictions, anyone can build this wonderful amp. You missed this GB, but as Chlorofille stated wait another month or so and Rudi will posssibly organize another GB.
 
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Because of forum rules, i cannot offer boards from Brazil without having the group

buy manager offering boards here:

So...group buy manager must belong to this forum
group buy manager should open a thread in the group buy section
group buy manager should receive orders in that same group buy.

I could not have the group buy manager opening a group buy here, because he entered in our forum, tried to post something about capacitors, some folks made them ridiculous and he felt offended..he was right, people had not the knowledge and sent bombs to him..then other brazilian come with papers supporting Mitchel's posts and ideas....well folks.... i do not think he felt himself stimulated to do job here when people use to do such kind of things...we lost the chance because those folks..and the most interesting thing..the ones bothered does not build anything..they just go doing this style of things.

I have tried, to negotiate with moderators..but i knew, in advance, that i would no suceed, as does not make sense to have a group buy running in Brazil and people ordering here...this is a matter of control, as group buy must have transparency, it is a non profit movement that should be controled.

Another trouble is that brazilian boards cost was too much low...and this would be a problem to the German group that was offering better boards, but costing the standard values and prices we have in Europe...in Brasil, our standards are lower...we earn less money, but to compensate this our prices are lower (quality often is smaller too).... so i had to put an overprice..to match prices... and this is something alike profit...and profit is against rules for a group buy..our forum is DIY, a non profit organization...if we start to have profit, we must go to the correct section... and pay for our advertising and bandwidth...if professional..if earning money..then we should go to the professional section.

Brazilian group buy was closed.... we have no more boards to offer anyway.

Only one man could have boards, because Rudi was in troubles..he sent to the man and post system have lost the package..then i knew what happened and the man told me he wanted the Brazilian boards, because this lost that happened....because of that, a personal boards from me was sent to the guy to compensate losses.... also Rudi sent the man's money back too.

It is not a matter of priviledges, or something personal alike " i do not want ".... i cannot because rules first...and now i cannot because there are no boards anymore.... a pity that people have bothered Mitchel about capacitors..and exactly a bunch of guys that build nothing...so..they produced losses to the whole forum and the interest of people to have boards.... without knowing ...but the old practice to bomb people when they read something different.

And not only boards...Mitchel and other friend organized group buy for transformers, for kits of parts (almost all needed parts except the output power..as we do not know what supplier to trust)... much more than that, they are now organizing group buy for enclosures...a modular design that will be excelent...so..... it looks i am complaining...yes i am!....people with lack of respect did that..and these lazy folks gone away free to bother others..when now, we have not another excelent group buy here in our forum.

When Mitchel have told condensers needs at least 10 percent of it's own maximum operating voltage to work fine..because of chemical reasons..they tried to drive him ridiculous..they almost said something alike the image i am posting..engage brain and will be easy to understand.

Search of capacitors...and you will know the ones made what the image says.... search them to thanks them by what they said!

regards,

Carlos
 

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Was a complete kit..including transformers, parts, boards

and now they are preparing a modular enclosure, using aluminium blades, to be assembled by the DIYer... will be cutted with watter jet machines.

The man that is the head of this... was exactly the one was target to the disrespectfull guys.

No one entered to defend Mitchel... i did and another brazilian did latter....so... i do not think Mitchel believe this forum personnel likes him..also i do not believe he wants to spend his free time to this forum too.

regards,

Carlos
 

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New board does not exists, so, there's no layout yet

There's no group buy to something that does not exist, and of course, my dear friend, we have no price too.

Boards rigth now...maybe..with Rudi..... i do not think he want to open a second round as he is not happy with me..i am preparing a new amplifier when he loves the former one.... people are this way..they do thing when they are happy to do things.

ahahahahah!.... this happens between us too.

regards,

Carlos
 
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Single transformer, dual PSUs

Thank you for the responses, smartx21, AndrewT and Carlos (Rudi as well). I put together the configuration, so there is no confusion about my question. The transformer would be 300VA (2x25V @ 6A) and I think it should be enough to supply both boards. That way each amp has a separate PSU, but they share a transformer.

This configuration saves space, which is why I would prefer it. The question is would it result in lower sound quality.

Thanks for your help.

Nikolay
 

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post853.
connect 4 to 5. This converts your dual secondary to centre tapped.

Connect the centre tap to the junction of the zero volts point between the smoothing caps on both channels.

Both channels now have a common ground connection. Be careful not to repeat a common ground connection anywhere else between the two channels.
 
Brazilians are building the Dx Blame ST...build yours too!

Here you see the soft start picture.... Nabuco e called Mitchel in our forum..he produces amplifiers for Brazil... watch the Semprini (gainclone):

http://www.semprini.com.br/S140A.html

Videos in the signature are in portuguese, they were made to help people to understand the basics to use drilling bits and to prepare holes to screws.

They will be in the signature for a couple of days only.

regards,

Carlos
 

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Watch what the Blame does with the competition:

YouTube - Goggomobil blast all others on Highway

regards,

Carlos

Are you saying the blame is like a goggomobile with a sports bike engine in it? May look plain and old but beats others? Come on destroyer stop with this "advertising". The blame is good enough for it's builders to tell about it. It's designer does not need to keep advertising the fact.
 
i just got all my part ordered except the transformer. having a hard time sourcing a dual 110v primary and dual 25v secondary at the right VA rating. should be sorted shortly...

most of the stuff was available at mouser singapore. the only challenge is the 0R33 non inductive resistor. i had to settle for an inductive version for now since nothing was available locally and leadtime was atrocious.

anyone local knows of a good shop for chassis? sim lim towers maybe? otherwise ill pick up a chassi on my next trip to hong kong or taipei. looking for something pleasing on the eye....

build will commence in two weeks!

par
 
Good news Parb....i will look forward by your progress

Here is my personnal amplifier....i use it together my computer.

The Querozene (Kerozene - the aviation fuel - jet plane fuel) is to clean and remove PVC glue i use to fix transform and boards in place...boards have squared capacitor below..so....they are glued keeping a gap of distance in between the board and the chassis..this avoids screw.

Independent, two power supplies, each one of them using 15.000uf plus 15.000 uf increases separation, power, sound stage and reduces interactions that produces distortions.

Transformers are not same size..but they are same voltage..the bigger one is 300 watts.... the smaller one is 180 watts..... the amplifier needs less than 200 watts to each channel.

I use to play Flac files i have downloaded for free from the internet....i cannot stand anymore for MP3...no way!

regards,

Carlos
 

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