Hello Carlos!
Here is a short video (my first) made with unsuitable material (Samsung ES73).
Sorry for the bad quality!
https://www.youtube.com/watch?v=BjS2cDhwuQs
Regards!
Here is a short video (my first) made with unsuitable material (Samsung ES73).
Sorry for the bad quality!
https://www.youtube.com/watch?v=BjS2cDhwuQs
Regards!
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Hello sir
That is really nice, I bet it sounds really good, offset is very good too, really low, what layout is that ?, also did I see larger Sanken transistors there ? I don't remember 🙂
Regards
Juan
That is really nice, I bet it sounds really good, offset is very good too, really low, what layout is that ?, also did I see larger Sanken transistors there ? I don't remember 🙂
Regards
Juan
Hello Juan!
The design of the printed circuit is by Willy B. Cerna.
Regards!
The output transistors are Sanken (2SC2922 & 2SA1216).
The design of the printed circuit is by Willy B. Cerna.
Regards!
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Pcboards from Juan Vargas i think dear Bonsai
And thanks Bonsai.
Dear Project....very nice work...the video you have made.... i have made comments into the video.
Thank you!
regards,
Carlos
And thanks Bonsai.
Dear Project....very nice work...the video you have made.... i have made comments into the video.
Thank you!
regards,
Carlos
Dear Carlos
that is Willy version layout "the grey images", I do not mind at all, never the less I'm happy about it this is great indeed 😀
Best Regards
Juan
that is Willy version layout "the grey images", I do not mind at all, never the less I'm happy about it this is great indeed 😀
Best Regards
Juan
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Hello Carlos!
Regards!
Too bad I do not have good equipment to save for the sound of SA DX is really excellent and very powerful.
Regards!
Yes...these cameras does not make a good recording
But even considering this...the sound was very good while was recording with such cameras.
Sound of these cameras are not fine....but when the amplifier is good, we can feel some quality despite the limited audio bandwidth.
regards,
Carlos
But even considering this...the sound was very good while was recording with such cameras.
Sound of these cameras are not fine....but when the amplifier is good, we can feel some quality despite the limited audio bandwidth.
regards,
Carlos
Here you have my supply, the Dx Supply installed to operate in my workbench
Dx Supply installed into my workbench vertical panel...out of the way not to bother my work into the horizontal flat table top... it has voltage adjustment from plus and minus 12 volts to plus 48 and minus 48 volts (5A+5A)...it is adjustable as you already understood, stabilized within 1 percent with electronic filtering (capacitance multiplier effect) to supression of ripple.
Not finished to run cables..i am thinking to run cables from behind the vertical panel...not decided yet.
regards,
Carlos
Dx Supply installed into my workbench vertical panel...out of the way not to bother my work into the horizontal flat table top... it has voltage adjustment from plus and minus 12 volts to plus 48 and minus 48 volts (5A+5A)...it is adjustable as you already understood, stabilized within 1 percent with electronic filtering (capacitance multiplier effect) to supression of ripple.
Not finished to run cables..i am thinking to run cables from behind the vertical panel...not decided yet.
regards,
Carlos
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I check and actually yes, I'm not sure about performance using those power transistors 🙂 but they are really cheap a dollar and some change on Digi Key Digi-Key Part Number 497-2609-5-ND
Regards
Juan
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Yes...we are using these transistors in Brazil
I do not think you can go to 2 ohms and very high power due to dissipation limit....they can go maximum to 80 watts each one of them because of temperature. (derated)...so... 4 units represents 320 watts.... 60 percent of that is audio..so...you can go to 4 ohms..but not to 2 ohms.
We use them.... hundreds are using them here in Brazil..they are good, they are cheap, they are fine....the trouble is the capacity to make heat transference..this is the weak point of these ones.
4215 also used...sorry by the pictures.
regards,
Carlos
I do not think you can go to 2 ohms and very high power due to dissipation limit....they can go maximum to 80 watts each one of them because of temperature. (derated)...so... 4 units represents 320 watts.... 60 percent of that is audio..so...you can go to 4 ohms..but not to 2 ohms.
We use them.... hundreds are using them here in Brazil..they are good, they are cheap, they are fine....the trouble is the capacity to make heat transference..this is the weak point of these ones.
4215 also used...sorry by the pictures.
regards,
Carlos
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I'm not an expert of have not enough experience as Carlos he been doing that for many years but Dx Super A has a special sound completely different from Dx Blame MKII Supercharger and Dx Blame MKIII that I actually own, I can not explain all details about the schematic Carlos did because he knows it better maybe Carlos can explain that better I myself feel really happy that this design is unique as all the Dx generations boards, by the way, thank you Alex MM he is the master of layout I did learn a lot from him also mister Willy Cerna good dude 🙂
Regards
Juan
About the Dx feature.... what is this kind of Super A, the Dx Super A
was posted in details..it is not the JVC Super A...it is Dx Super A...something different.
Please, read the thread since the beginning and you gonna understand what was the purpose...you will see first ideas abandoned and a new one applied.
All that stuff was posted in order to provide you, folks, all information needed and saving us time and energy to be repeating the same old song again and again.... please, get back to page one and read the entire thread.
I am not asking too much....thread is microscopic compared to the entire forum and i have read the entire forum, all posts, all pages, all threads, since 2004 and i did it three times.
regards,
Carlos
was posted in details..it is not the JVC Super A...it is Dx Super A...something different.
Please, read the thread since the beginning and you gonna understand what was the purpose...you will see first ideas abandoned and a new one applied.
All that stuff was posted in order to provide you, folks, all information needed and saving us time and energy to be repeating the same old song again and again.... please, get back to page one and read the entire thread.
I am not asking too much....thread is microscopic compared to the entire forum and i have read the entire forum, all posts, all pages, all threads, since 2004 and i did it three times.
regards,
Carlos