Well Michael, this distortion level is wonderfull, it is really a pitty that you do
not want to make it as an Industrie.
Michael, i have more than 45 years long listening good audio...constructing, buying, selling and those brands we see normally, you kicked them all very easy.
Your Symassym is extraordinary, one of the five better sound i ever heard in my life.
Think about it Michael, to register first, and unless sell this design to some local factory....i really cannot accept this amplifier only inside our forum, between us audiophiles, audioholics and others...it deserves, or people deserves to have it, not only our Community.
This must be a possibility to everyone.
It is just switch it on, the first moments evaluating we fast notice how it is nice, and increasing the volume surprise us...and if continue increasing we do not believe the result.
Please, register, turn it real Industrialised material, or unless let if free to someone else use it to turn more people happy.
By the way...i love Merkel...what a woman!
I will talk serious, if you send me a sign document saying that i can use it....this unit will be sold in Brazil in a matter of monthes... to speak clear, i have personal interest in your design.
Hugh already offered his facilities, to produce a good design by myself, or something that have not legal problems, to help me to start a business, as he cannot offer me Aksa, because of some negotiations started with someone in USA....well, i need to do some, as you already know.
Can you think, please, about to sell your design...I can register it here, but if you enter with "legal representation", having local testimony to guarantee to you an earlier date related your design, the documents here will be immediatelly blocked...so, those short cuts are not only not adequate and dirty, as do not work for long time...the long arm of the law catch the ones that try to be "too much clever".
Please, think about the price, including your registration of documents in Patents Registration office in Deutschland, were i suppose you will have the need to have the design signed by an EE.
Thanks in advance by your attention and kindness to evaluate my proposal.
regards,
Carlos
not want to make it as an Industrie.
Michael, i have more than 45 years long listening good audio...constructing, buying, selling and those brands we see normally, you kicked them all very easy.
Your Symassym is extraordinary, one of the five better sound i ever heard in my life.
Think about it Michael, to register first, and unless sell this design to some local factory....i really cannot accept this amplifier only inside our forum, between us audiophiles, audioholics and others...it deserves, or people deserves to have it, not only our Community.
This must be a possibility to everyone.
It is just switch it on, the first moments evaluating we fast notice how it is nice, and increasing the volume surprise us...and if continue increasing we do not believe the result.
Please, register, turn it real Industrialised material, or unless let if free to someone else use it to turn more people happy.
By the way...i love Merkel...what a woman!
I will talk serious, if you send me a sign document saying that i can use it....this unit will be sold in Brazil in a matter of monthes... to speak clear, i have personal interest in your design.
Hugh already offered his facilities, to produce a good design by myself, or something that have not legal problems, to help me to start a business, as he cannot offer me Aksa, because of some negotiations started with someone in USA....well, i need to do some, as you already know.
Can you think, please, about to sell your design...I can register it here, but if you enter with "legal representation", having local testimony to guarantee to you an earlier date related your design, the documents here will be immediatelly blocked...so, those short cuts are not only not adequate and dirty, as do not work for long time...the long arm of the law catch the ones that try to be "too much clever".
Please, think about the price, including your registration of documents in Patents Registration office in Deutschland, were i suppose you will have the need to have the design signed by an EE.
Thanks in advance by your attention and kindness to evaluate my proposal.
regards,
Carlos
Hi dude how is it going mate,not yet happy new year celebrations
at copacabana
hope Mike grants you your wish
happy new year Dude
at copacabana
hope Mike grants you your wish
happy new year Dude
I am in Recife, living here since 1991, Rio and Copacabana are my home town
We have some hours of difference, despite bureacratic decisions made my enormous Country have a National Time, referenced by Brasilia, the capital, by a coincidence the same New York time.
Recife is the extreme eastern point of South America...the smallest distance related Africa.... a couple of thousand miles North-Northeast related Rio de Janeiro City.
My State, the one i am living now, Pernambuco, did not accepted the National united time, so i had two parties.
Now, in this moment, there are too much people in the beaches, because there are enormous African religious influences here...and people make roses offer to Yemanjá.... the Queen of Oceans, and they will be there, dressing white, till the sunrise, dancing and singing....we have all religions here, and is forbiden to make criticisms about anyone of them...also racism is a crime that produces instantaneous prison, and cannot pay to get out from prison...have to sleep there for 48 hours till meet the judge, and will have to apologize to the offended one.
25 tons of fireworks where used in Rio de Janeiro, 17 minutes of fireworks burning, boats 400 meters distant from the beach where the fireworks launch stations....12 shots each second...around 12240 cartridges were fired, each one with 200 hundred burning points.
The wind helped, as was from West to East.
2 million people where in Copacabana Beach this nigth....maybe a third of entire population of the city, not sure about the total...but i am sure that 630 thousand Stranger tourists are there in Rio, and we expect around a million to Carnival.
United States are the biggest majority of tourists here, followed by Germans.
1 percent never return to their countries...hehe...marriage!
regards,
Carlos
We have some hours of difference, despite bureacratic decisions made my enormous Country have a National Time, referenced by Brasilia, the capital, by a coincidence the same New York time.
Recife is the extreme eastern point of South America...the smallest distance related Africa.... a couple of thousand miles North-Northeast related Rio de Janeiro City.
My State, the one i am living now, Pernambuco, did not accepted the National united time, so i had two parties.
Now, in this moment, there are too much people in the beaches, because there are enormous African religious influences here...and people make roses offer to Yemanjá.... the Queen of Oceans, and they will be there, dressing white, till the sunrise, dancing and singing....we have all religions here, and is forbiden to make criticisms about anyone of them...also racism is a crime that produces instantaneous prison, and cannot pay to get out from prison...have to sleep there for 48 hours till meet the judge, and will have to apologize to the offended one.
25 tons of fireworks where used in Rio de Janeiro, 17 minutes of fireworks burning, boats 400 meters distant from the beach where the fireworks launch stations....12 shots each second...around 12240 cartridges were fired, each one with 200 hundred burning points.
The wind helped, as was from West to East.
2 million people where in Copacabana Beach this nigth....maybe a third of entire population of the city, not sure about the total...but i am sure that 630 thousand Stranger tourists are there in Rio, and we expect around a million to Carnival.
United States are the biggest majority of tourists here, followed by Germans.
1 percent never return to their countries...hehe...marriage!
regards,
Carlos
Attachments
Happy New Year Carlos!
The Venice of Brazil. That's a beautiful place you're living in. Summer all year long, a different lifestyle. Sometimes I wonder if I should have picked a different place to be. I left my home country the year you moved to Recife. Maybe I hate my life or maybe I am going through my mid-life chrisis, or both.
Back to working on my little PCB project. 😉
The Venice of Brazil. That's a beautiful place you're living in. Summer all year long, a different lifestyle. Sometimes I wonder if I should have picked a different place to be. I left my home country the year you moved to Recife. Maybe I hate my life or maybe I am going through my mid-life chrisis, or both.
Back to working on my little PCB project. 😉
two Symasym v5.2 finished on headsink
Happy new year !
i have finished two Symasym v5.2.
Here are some pictures:
I will listen to them today at afternoon.
Many thanks Mike !
Happy new year !
i have finished two Symasym v5.2.
Here are some pictures:
An externally hosted image should be here but it was not working when we last tested it.
I will listen to them today at afternoon.
Many thanks Mike !
I evaluate your movement in a different way Grataku...you had enougth courage to go!
as Dimitri Dannyuk also made and many others, you are living in the "World Center"..... and as a new "Roman Citizen" you have all the benefits of leaving in the best possible place in earth related the possibility to lay down your head in your pillow with the belief that you will find a new job if lost the one you have.
That Social Ensurance will give you some support, if not perfect, the Social Security in your place have "tragic problems"...so small related mine own country problems, that when i knew some of those problems in details i have started to laugh, not only because they are very small in comparison with the problems i have here, but also i was laughing histerically..... some Psycho crisis i had, to see that some decence is possible...when we do not see how and when we will finish with those social problems here.
My country, alike the one you are living, is big in size, but mine is short in mind, smaller in decence and undeveloped related social problems...but goes changing, and we can see a better future, more a couple of decades we will be feeding the world with food from the land...agriculture....fruits and all that comes from the land, also fuel, biodiesel and watter, and we are cleaning the corruption, punishing all those bad guys, the nation will is the search of decence.
We have, already, racial problems that hurts black population, when we are almost all of us, black... also white, ...we are Portuguese, Italian, French, Japanese, Korean, Chinese, English, Holand or Dutch, German and many other cultures that have founded towns here...we are also African because of Slaves and we are Red because of Asiat natives that lived here, our Indians,the ones already have a massive population and part of national blood..... but black ones statistically owns a little bit less money, and are the more poorest population....no more sign of racism here....marriages no problem!.... street, buses, live together, no apartheid!...but there are something that came from slavery....they were made free more than hundred years ago...but the Coffee farmers did not start to pay to their work...they did not accepted to pay someone that had already work for nothing!...they prefered to invite Italians and other countries that had their own needs in the past.... they prefered to invite those Europeans to imigrate to Brazil to work in farms.... the black slaves had not job...had a freedom to have not freedom to work, and to feed themselves with their own hands.
We had not competence to install those people into our society, as a complete citizens.....now they are in the Government, in high positions, thousands of those complete black guys, as we are all a little brown because of mixing, but already....a big portion had not received their real citizenship....as in the work strips, there are more blacks than brown ones....they are inside the inclusion process, and government are creating protective laws to them, to include in University some chairs, some percentual to black people, and they invited people to write letters to ask for those places in University...and people white as snow appear there saying that they are black!..... and they were....they proved....father or mother...grandfather...or some generations, we always have someone black....so...we have the genetic.... the white skin is only a matter of genetic casualities.
half billion dollares each day...or month...i have doubts about numbers...but Grimberg will come to correct me if i was wrong, as he is Brazilian..... we are paying half billion dollares of interest only....we have beeing borrowing money that was lost in big part by corruption...and now we cannot breath to pay this bill....my people was guilty to borrow that money, the countries that gave money also knew our problems of corruption but prefered to have profit.
But we are going up....we are waking up, and we we grown alike a giant to feed all earth, this will be the future destiny of this beautifull and peacefull land, with friendly people, that loves to help others, sometimes helping without think, in advance, if they deserve some attention.
You had courage Grataku....you are a man!
But that feeling that something is missing will be with you all the time, as mother earth is important....our country and our culture are our basic extructure...i hope you can return someday to your place, at least to be buried or to spend your last days...because the one lost mother earth, will be never completelly happy.
Sorry for the off topic....just to celebrate the new year!
regards,
Carlos
as Dimitri Dannyuk also made and many others, you are living in the "World Center"..... and as a new "Roman Citizen" you have all the benefits of leaving in the best possible place in earth related the possibility to lay down your head in your pillow with the belief that you will find a new job if lost the one you have.
That Social Ensurance will give you some support, if not perfect, the Social Security in your place have "tragic problems"...so small related mine own country problems, that when i knew some of those problems in details i have started to laugh, not only because they are very small in comparison with the problems i have here, but also i was laughing histerically..... some Psycho crisis i had, to see that some decence is possible...when we do not see how and when we will finish with those social problems here.
My country, alike the one you are living, is big in size, but mine is short in mind, smaller in decence and undeveloped related social problems...but goes changing, and we can see a better future, more a couple of decades we will be feeding the world with food from the land...agriculture....fruits and all that comes from the land, also fuel, biodiesel and watter, and we are cleaning the corruption, punishing all those bad guys, the nation will is the search of decence.
We have, already, racial problems that hurts black population, when we are almost all of us, black... also white, ...we are Portuguese, Italian, French, Japanese, Korean, Chinese, English, Holand or Dutch, German and many other cultures that have founded towns here...we are also African because of Slaves and we are Red because of Asiat natives that lived here, our Indians,the ones already have a massive population and part of national blood..... but black ones statistically owns a little bit less money, and are the more poorest population....no more sign of racism here....marriages no problem!.... street, buses, live together, no apartheid!...but there are something that came from slavery....they were made free more than hundred years ago...but the Coffee farmers did not start to pay to their work...they did not accepted to pay someone that had already work for nothing!...they prefered to invite Italians and other countries that had their own needs in the past.... they prefered to invite those Europeans to imigrate to Brazil to work in farms.... the black slaves had not job...had a freedom to have not freedom to work, and to feed themselves with their own hands.
We had not competence to install those people into our society, as a complete citizens.....now they are in the Government, in high positions, thousands of those complete black guys, as we are all a little brown because of mixing, but already....a big portion had not received their real citizenship....as in the work strips, there are more blacks than brown ones....they are inside the inclusion process, and government are creating protective laws to them, to include in University some chairs, some percentual to black people, and they invited people to write letters to ask for those places in University...and people white as snow appear there saying that they are black!..... and they were....they proved....father or mother...grandfather...or some generations, we always have someone black....so...we have the genetic.... the white skin is only a matter of genetic casualities.
half billion dollares each day...or month...i have doubts about numbers...but Grimberg will come to correct me if i was wrong, as he is Brazilian..... we are paying half billion dollares of interest only....we have beeing borrowing money that was lost in big part by corruption...and now we cannot breath to pay this bill....my people was guilty to borrow that money, the countries that gave money also knew our problems of corruption but prefered to have profit.
But we are going up....we are waking up, and we we grown alike a giant to feed all earth, this will be the future destiny of this beautifull and peacefull land, with friendly people, that loves to help others, sometimes helping without think, in advance, if they deserve some attention.
You had courage Grataku....you are a man!
But that feeling that something is missing will be with you all the time, as mother earth is important....our country and our culture are our basic extructure...i hope you can return someday to your place, at least to be buried or to spend your last days...because the one lost mother earth, will be never completelly happy.
Sorry for the off topic....just to celebrate the new year!
regards,
Carlos
Happy New year
Happy New Year everybody and especially to those frequently donating their efforts...MikeB, DestroyerX, PMA etc
kb
Happy New Year everybody and especially to those frequently donating their efforts...MikeB, DestroyerX, PMA etc
kb
The same for you Kambule, be more happy this new year.
And many thanks by your kindness.
regards,
Carlos
And many thanks by your kindness.
regards,
Carlos
Hi Carlos, here are my answers to your questions:
1, The 10pf feedback cap
Bodeplot showed a gain margin above 10db, the 10pf should be no problem. But feedback compensation might need change when cascode devices are selected.
2, the 10ohms ground separating resistor
Pavel suggested 2 anitparalell diodes across this resistor to protect it from ground differences greater 0.6v.
3, The rail resistor...
Current through this has doubled, and the size of the filtering cap also. This value is not finally evaluated, but should be of much less influence in this circuit. No, i have not heard yet, sym6 only exist in sims for now.
4, The clamping diodes
Yes, they limit the outputswing of 1st LTP to +/- 0.3v, the 2nd diffamp saturates at 100mv anyway. They were necessary because of the cascoding to the 2nd diffamp. Max outputswing of 1st LTP is +/-1v, so max output is 2v. But the cascodes set the voltage relative to rail to 1.4v. This would drive the devices here into reverse bias everytime the amp clips or reaches slew limit. This gave some problems with recovering from clipping and showed artefacts when slewing. These diodes removed that problem and do not limit performance. They need to be high speed diodes, or recovery from clipping might get a disaster. Under normal operation the will never conduct.
5, outputstage / psu
When putting several devices in paralell, current sharing must be guaranteed. I am not sure if the 0.22ohms are big enough. If current sharing is not proper, one of the devices might get more work than the others and blow. Also linearity is said to be decreased by paralell devices and the input capacity grows. Multiple devices are needed, as a single will not be able to handle the power. 2nd breakdown, max dissipation, max current will all be exceeded.
About the powersupply, i am not experienced with that.
6, input cap
Difficult question, the 4.7uf is way enough to reproduce frequencies below 25hz at full scale. For some strange reason a 10uf here gives slightly more bass punch. I am using a polyester film cap here. (wima mks2, not too easy to get outside europe) I should reserve space for a paper/oil on new boards.
I am not sure, but nonpolarized elyts should do the job. The elyts might need a burn in, you have to apply a signal for this process. I did not recognize a burn in needed for the film caps, the amps sounded the same from first power up.
7, vbe multiplier
Quality of this transistor is not important, i choose the bd139 because it is easy to get and cheap, and with its to126 case easy to mount to the heatsink. In theory you can use any non darlington npn.
The cap is not charge suckout (driver stage is ClassA as it uses floating resistor), just a filter and you should keep it in front of the base stoppers. You might risk parasitic oscillation. My amp oscillated with 35mhz shorting the base stoppers.
8, driver / zobel
You would have to lower the 33ohms to increase bias here, but bias should be high enough. The drivers already dissipate several watts. Yes, i increased the size of the charge suckout because of the higher amount of bases. Using more devices should work, but is typically more expensive. I used smaller zobel because of high speed devices. Graham suggested even smaller, 22nf. 100nf+10ohm is a standard value for older slower devices.
9, feedback network / dc blocking cap
You see polarity on my webpage with the eagle schematic (keeps the same for sym6, + to gnd), no need for bipolar elyts. A 470uf/16v is quite small and not expensive. 220uf would also do it, but limit low freq response.
The 500ohms resistor, do not change it, it is part of the feedbacknetwork. Any change here needs a redesign of the feedback compensation. Keep the 22k+500ohms (or 499), or you risk oscillation / bad sound. The smaller this resistor gets, the bigger cap you need.
More questions ?
BTW, Happy new year to you all !
Mike
1, The 10pf feedback cap
Bodeplot showed a gain margin above 10db, the 10pf should be no problem. But feedback compensation might need change when cascode devices are selected.
2, the 10ohms ground separating resistor
Pavel suggested 2 anitparalell diodes across this resistor to protect it from ground differences greater 0.6v.
3, The rail resistor...
Current through this has doubled, and the size of the filtering cap also. This value is not finally evaluated, but should be of much less influence in this circuit. No, i have not heard yet, sym6 only exist in sims for now.
4, The clamping diodes
Yes, they limit the outputswing of 1st LTP to +/- 0.3v, the 2nd diffamp saturates at 100mv anyway. They were necessary because of the cascoding to the 2nd diffamp. Max outputswing of 1st LTP is +/-1v, so max output is 2v. But the cascodes set the voltage relative to rail to 1.4v. This would drive the devices here into reverse bias everytime the amp clips or reaches slew limit. This gave some problems with recovering from clipping and showed artefacts when slewing. These diodes removed that problem and do not limit performance. They need to be high speed diodes, or recovery from clipping might get a disaster. Under normal operation the will never conduct.
5, outputstage / psu
When putting several devices in paralell, current sharing must be guaranteed. I am not sure if the 0.22ohms are big enough. If current sharing is not proper, one of the devices might get more work than the others and blow. Also linearity is said to be decreased by paralell devices and the input capacity grows. Multiple devices are needed, as a single will not be able to handle the power. 2nd breakdown, max dissipation, max current will all be exceeded.
About the powersupply, i am not experienced with that.
6, input cap
Difficult question, the 4.7uf is way enough to reproduce frequencies below 25hz at full scale. For some strange reason a 10uf here gives slightly more bass punch. I am using a polyester film cap here. (wima mks2, not too easy to get outside europe) I should reserve space for a paper/oil on new boards.
I am not sure, but nonpolarized elyts should do the job. The elyts might need a burn in, you have to apply a signal for this process. I did not recognize a burn in needed for the film caps, the amps sounded the same from first power up.
7, vbe multiplier
Quality of this transistor is not important, i choose the bd139 because it is easy to get and cheap, and with its to126 case easy to mount to the heatsink. In theory you can use any non darlington npn.
The cap is not charge suckout (driver stage is ClassA as it uses floating resistor), just a filter and you should keep it in front of the base stoppers. You might risk parasitic oscillation. My amp oscillated with 35mhz shorting the base stoppers.
8, driver / zobel
You would have to lower the 33ohms to increase bias here, but bias should be high enough. The drivers already dissipate several watts. Yes, i increased the size of the charge suckout because of the higher amount of bases. Using more devices should work, but is typically more expensive. I used smaller zobel because of high speed devices. Graham suggested even smaller, 22nf. 100nf+10ohm is a standard value for older slower devices.
9, feedback network / dc blocking cap
You see polarity on my webpage with the eagle schematic (keeps the same for sym6, + to gnd), no need for bipolar elyts. A 470uf/16v is quite small and not expensive. 220uf would also do it, but limit low freq response.
The 500ohms resistor, do not change it, it is part of the feedbacknetwork. Any change here needs a redesign of the feedback compensation. Keep the 22k+500ohms (or 499), or you risk oscillation / bad sound. The smaller this resistor gets, the bigger cap you need.
More questions ?
BTW, Happy new year to you all !
Mike
Thank you Mike, all informs very clear, i have nothing more to answer
and nothing to argue.
Also happy new year for you all
Merkel is fascinating....the eyes shows me that she is good inside.
regards,
Carlos
and nothing to argue.
Also happy new year for you all
Merkel is fascinating....the eyes shows me that she is good inside.
regards,
Carlos
Re: two Symasym v5.2 finished on headsink
I am already curious about your impressions ! What is this monster input cap ? paper/oil ?
Mike
dx.master said:
I am already curious about your impressions ! What is this monster input cap ? paper/oil ?
Mike
Re: Re: two Symasym v5.2 finished on headsink
Hello Mike,
only the best, MKP 4u7 F.
I sell some 0,22uF/1000V MKP and 0,056uF/1000V KP 1836 (!)
but they are to small...
I build 3 2-Way Speaker with this 2-Way X-Over Network from OliveAudio.com and check out the variation of the 6,8uF MKP Cap.
This 2-Way X-Over Network sound beautiful !
Hello Mike,
only the best, MKP 4u7 F.
I sell some 0,22uF/1000V MKP and 0,056uF/1000V KP 1836 (!)
but they are to small...
I build 3 2-Way Speaker with this 2-Way X-Over Network from OliveAudio.com and check out the variation of the 6,8uF MKP Cap.
This 2-Way X-Over Network sound beautiful !
MikeB said:
crossover series
Yes, it does sound terrific!
I have three pairs of speakers with that ropology of crossover.
After a while I modify all three crossovers to series, like that
one, as a mater of fact one of them has exactly the same values,
what they call a generic crossover. It works and soun beautiful.
Yes, it does sound terrific!
I have three pairs of speakers with that ropology of crossover.
After a while I modify all three crossovers to series, like that
one, as a mater of fact one of them has exactly the same values,
what they call a generic crossover. It works and soun beautiful.
If it can interest someone, here is a list giving all the order codes for Reichelt as well as the prices. The lists gathers all the parts needed for a pair of board.
http://www.membres.lycos.fr/sst00940/reichelt.htm
http://www.membres.lycos.fr/sst00940/reichelt.htm
Hi,
I looked into Reichelt's web page, from my weak german language skills I understood that one have to purchase for at least 150€ if it's outside Germany, is that correct?
I checked 2SA1943/2SC5200 and their prices were 1,38€/each for both types including Mwst. which is really cheap IMO, does anyone know if it's genuine Toshibas and are they of O-grade hfe classification?
Cheers Michael
I looked into Reichelt's web page, from my weak german language skills I understood that one have to purchase for at least 150€ if it's outside Germany, is that correct?
I checked 2SA1943/2SC5200 and their prices were 1,38€/each for both types including Mwst. which is really cheap IMO, does anyone know if it's genuine Toshibas and are they of O-grade hfe classification?
Cheers Michael
Dear Carlos, first I want to thank you for spending so much time and effort introducing us to Mike's master piece. We all benefit greatly here. And all those nice pictures too, I wish I can visit your beautiful country some day. I have a question about your PCB. Did you use Mike's BRD file to have your PCB professionally made? Some gaps between wire are much narrower than the BMP files. I would like to double check before I send it out to a PCB maker. Same question to anyone else here...
Happy new year !!!
Happy new year !!!
tttking, i am honored with your preference, but my boards are not so good as the ones
Michael and Pavel did, so, they can show you the perfect art work to produce the professional boards.
thank you.
regards,
Carlos
Michael and Pavel did, so, they can show you the perfect art work to produce the professional boards.
thank you.
regards,
Carlos
Yes, you have to buy 150€ worth of parts and the only way to pay is on arrival (more expensive than simply money transfer). I plan to ask a german friend. Even with the rerouting costs, it is still cheaper.Ultima Thule said:
I'm a bit concerned about the toshiba trannies. A lot of counterfeit are known to circulate for those parts. Even companies as Farnell stock 2SC5200 from Magnatec and those are well known counterfeit. There was a thread about that some time ago. The MJL Reichelt stock are from ONsemi and afaik, there are no counterfeit for those already spotted (at least not with ON branding).
Hi !
Ben, you might add the MKS2-4.7u to the list ? You easily get it at reichelt and fits perfectly on the board. Nice list !
Michael, if you are looking for transistors there might be better shops, if you order international you might consider digikey, they have definitely genuine O-grade Toshibas. I have no idea what you get at reichelt...
Tim, i am not sure which wires you are meaning, but there shouldn't be any traces beeing too close. The layout passes the DRC in eagle. The manufacturer should refuse the job if there are such problems.
Uwe, have you already been able to listen to your symasyms ?
Mike
Ben, you might add the MKS2-4.7u to the list ? You easily get it at reichelt and fits perfectly on the board. Nice list !
Michael, if you are looking for transistors there might be better shops, if you order international you might consider digikey, they have definitely genuine O-grade Toshibas. I have no idea what you get at reichelt...
Tim, i am not sure which wires you are meaning, but there shouldn't be any traces beeing too close. The layout passes the DRC in eagle. The manufacturer should refuse the job if there are such problems.
Uwe, have you already been able to listen to your symasyms ?
Mike
Thanks Ben and Mike!
Did you Mike order from Digikey earlier, just have a weak memory you wrote about it earlier, if not somebody else in this thread.
Does Digikey apply any VAT to their prices when sold abroad, or was it (Mwst) applied at the arrival to Germany? Couldn't find out on Digikey's terms of condition page.
Also Profusionplc.com have these BJT's in O-grade for quite good prices (unit prices @ 10+ = 1.84€ and 25+ = 1,29€ incl. VAT), and even free shipment in EU for order exceeding 60 GBP (that means at least 34 pairs.. 😀 ).
Cheers Michael
Did you Mike order from Digikey earlier, just have a weak memory you wrote about it earlier, if not somebody else in this thread.
Does Digikey apply any VAT to their prices when sold abroad, or was it (Mwst) applied at the arrival to Germany? Couldn't find out on Digikey's terms of condition page.
Also Profusionplc.com have these BJT's in O-grade for quite good prices (unit prices @ 10+ = 1.84€ and 25+ = 1,29€ incl. VAT), and even free shipment in EU for order exceeding 60 GBP (that means at least 34 pairs.. 😀 ).
Cheers Michael