symasym finished
hi, first of all sorry about my english. im from argentina.
I successfully built the amplifier with the toshiba 2sc1943 and 2sc5200 transistors. originals and very difficult to find.
the sound is GREAT. te output power es very good. at least for my room. I've used it in some partys and birthdays but nothing proffesional. only for fun.
I want to thank the creator of such excellent design.
I uploaded some photos to rapidshare and a video of the amp.
the power supply has 4 transformers 12v to avoid space problems.
the voltage is stable at high current demand and themperature is ok.
there is a fan control system that turns on when the temperature exceeds the limit set by the preset and provides an histeresis.
and there is a stereo digital vumeter that uses the LM3915 and a peak detector circuit for better response, even in DOT mode.
here is the link to rapidshare.
https://rapidshare.com/files/456947880/symasym.rar
saludos desde rosario, santa fe, argentina 🙂
hi, first of all sorry about my english. im from argentina.
I successfully built the amplifier with the toshiba 2sc1943 and 2sc5200 transistors. originals and very difficult to find.
the sound is GREAT. te output power es very good. at least for my room. I've used it in some partys and birthdays but nothing proffesional. only for fun.
I want to thank the creator of such excellent design.
I uploaded some photos to rapidshare and a video of the amp.
the power supply has 4 transformers 12v to avoid space problems.
the voltage is stable at high current demand and themperature is ok.
there is a fan control system that turns on when the temperature exceeds the limit set by the preset and provides an histeresis.
and there is a stereo digital vumeter that uses the LM3915 and a peak detector circuit for better response, even in DOT mode.
here is the link to rapidshare.
https://rapidshare.com/files/456947880/symasym.rar
saludos desde rosario, santa fe, argentina 🙂
Tay made of aluminium profiles (W = 100 mm, L = 200 mm, D = 300 mm). Te frontplate is 5 mm acryl.
The best is, you kan see no screws from outside. Here is an pic of the inner structure.
Regards
Thomas
The best is, you kan see no screws from outside. Here is an pic of the inner structure.
Regards
Thomas
Ultimate scheme and PCB!
Hi all !
Very interesting and completely project!
I want to create an amplifier percent of this quality and I have little to enjoy its sound! It has a high quality DC-power supply Ucc=+/-36V/300W, so please rate it and makes the final schematic and PCB for this amplifier !
In the end, I ask if someone is able to describe the operation of this amplifier at a given schematic?
thanks and cherss!
P.S.
I expect a quick reply
Hi all !
Very interesting and completely project!
I want to create an amplifier percent of this quality and I have little to enjoy its sound! It has a high quality DC-power supply Ucc=+/-36V/300W, so please rate it and makes the final schematic and PCB for this amplifier !
In the end, I ask if someone is able to describe the operation of this amplifier at a given schematic?
thanks and cherss!
P.S.
I expect a quick reply
Attachments
Hi pinkmouse!
Topic is very extensive, and I go weak English, for it will take me a long time!?
Therefore, I ask that makes the final version does not wander much!🙁
In the end, please give a little description about the theory of circuits (schematic)!
Thanks
Topic is very extensive, and I go weak English, for it will take me a long time!?
Therefore, I ask that makes the final version does not wander much!🙁
In the end, please give a little description about the theory of circuits (schematic)!
Thanks
Hi
Complementary pair is MJ15024/MJ15025 and MJ15022/MJ15023!!!
Please see PCB (MJ15022/MJ15024)?!
I think the mistake.😕🙄
thanks
@Radio,
the design / layout shown in the picture above was made "quick and dirty", and I did not take care of the transistor types, names, ...
This layout:
http://h6.abload.de/img/untitledj7eu.jpg
is current and correct (has already been built by a lot of German DIY'ers).
I offer the PCBs in this group-buy:
http://www.diyaudio.com/forums/group-buys/187592-3-symasym.html
If you are interested: hurry up, please! I will close the group-buy today.
Best regards - Rudi_Ratlos
the design / layout shown in the picture above was made "quick and dirty", and I did not take care of the transistor types, names, ...
This layout:
http://h6.abload.de/img/untitledj7eu.jpg
is current and correct (has already been built by a lot of German DIY'ers).
I offer the PCBs in this group-buy:
http://www.diyaudio.com/forums/group-buys/187592-3-symasym.html
If you are interested: hurry up, please! I will close the group-buy today.
Best regards - Rudi_Ratlos
Hi,
I am also working on redesign of PCB with respect to layout, using different package transistors, double side PCB,
will update once I am done with it..
I am also working on redesign of PCB with respect to layout, using different package transistors, double side PCB,
will update once I am done with it..
Hi Alex mm!
Please percent're a great virtuos PCB design! Give solve this problem! Design a PCB for this amplifier (according to the schematics given below)!
I'll be very grateful, and believe, and many other visitors of this theme (the Project)!
I am very grateful, and many other visitors of this topic (the Project)!
Thanks and cheers !
Last edited:
Andrew, what will you serve me? I accept anything - but I do not like "Fish 'n Chips".
I am the author of this schematics (inspired and assisted by my Canadian friend Joseph).
The schematics that RADIO has shown in the SYMASYM-G PDF-document is of course the schematics of the TO-3 SYMASYM
that I am currently offering in the http://www.diyaudio.com/forums/group-buys/187592-3-symasym.html group buy.
I wonder where RADIO found it!
PCBs do exist in the best quality available and have already been built by a lot of German DIYers.
http://www.diyaudio.com/forums/group-buys/187592-3-symasym-3.html - Post #28
The TO-3 SYMASYM group-buy will be closed in a minute.
Best regards - Rudi_Ratlos
I am the author of this schematics (inspired and assisted by my Canadian friend Joseph).
The schematics that RADIO has shown in the SYMASYM-G PDF-document is of course the schematics of the TO-3 SYMASYM
that I am currently offering in the http://www.diyaudio.com/forums/group-buys/187592-3-symasym.html group buy.
I wonder where RADIO found it!
PCBs do exist in the best quality available and have already been built by a lot of German DIYers.
http://www.diyaudio.com/forums/group-buys/187592-3-symasym-3.html - Post #28
The TO-3 SYMASYM group-buy will be closed in a minute.
Best regards - Rudi_Ratlos
Hi all!
Here's extremely PCB for this audio amplifier with Ucc=+/-36Vdc!
The second PCB (Figure 2) has a fault, instead MJ15024 should be MJ15023 !
cheers !!
P.S.
Alex mm, if you are able to help around the design of the PCB, I know that you can do even better!
Here's extremely PCB for this audio amplifier with Ucc=+/-36Vdc!
The second PCB (Figure 2) has a fault, instead MJ15024 should be MJ15023 !
cheers !!
P.S.
Alex mm, if you are able to help around the design of the PCB, I know that you can do even better!
Attachments
Last edited:
PCB for this amplifier!
Hi All !
Saves the schematics, here's extremely PCB for this audio amplifier with Ucc=+/-36Vdc!
Cheers !!
Hi All !
Saves the schematics, here's extremely PCB for this audio amplifier with Ucc=+/-36Vdc!
Cheers !!
Attachments
Last edited:
Two questions, Radio:
1) Who do you address with "Alex mm" ?
2) what do you want? There have been several GB, there are different version (from user AAK) which have been built as well, so what do you want??
1) Who do you address with "Alex mm" ?
2) what do you want? There have been several GB, there are different version (from user AAK) which have been built as well, so what do you want??
