To save myself from typing, here is something that should give you answer and more than enough info regarding this matter. Don’t get me wrong, but I really don’t have time to type!
Text is not mine for, I found this somewhere on the NET but I really don’t remember where!
Text is not mine for, I found this somewhere on the NET but I really don’t remember where!
Thanks dr Bora,
Ill have a look, I have a pdf file on that bjt current source but it offers no good explanations or how to derive the ic, only states its a superior ccs. There are also other configurations shown, dates from the 70s if I remember correctly. If you interested in a copy let me know and Ill search my 3 harddrives for it, will take a couple of days though.
Ill have a look, I have a pdf file on that bjt current source but it offers no good explanations or how to derive the ic, only states its a superior ccs. There are also other configurations shown, dates from the 70s if I remember correctly. If you interested in a copy let me know and Ill search my 3 harddrives for it, will take a couple of days though.
@homemodder:If you interested in a copy let me know and Ill search my 3 harddrives for it, will take a couple of days though.
Well, thank you for such offer but I don't need that, so, don't waste your time and surface of your HDD-s! 😎
Well, thank you for such offer but I don't need that, so, don't waste your time and surface of your HDD-s! 😎
!
New picture's...
New picture's...
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Hi Viktor,boraomega said:
Could you share the StudioSE schematic & pcb layout.
I'm building Studio now and I gonna build the SE version as well.
Regards,
Ooops, bora home page was changed
Thanks, Viktor.
I did not notice that Bora's site URL has changed
I keep searching this page:
http://www.bas.plumts.com/mojiprojekti1.html
Page still accessible but information was not updated.
Thanks, Viktor.
I did not notice that Bora's site URL has changed
I keep searching this page:
http://www.bas.plumts.com/mojiprojekti1.html
Page still accessible but information was not updated.
homemodder said:
Where did you find that CCS, homemodder?
Maybe you should have posted this in some CSS Topic
Like: Searching the "best" CCS
Regarding current sources and current mirrors, there are plenty different.
Also, which one is best depends what you want:
- DC precision, High impedance, PSSR, low noise, low capacitance .....
Techno, and amplifier from Doctor Borivoje Jagodic
Is playing into a friends laboratory.. the guy is an official representative of many Brazilian brands of audio equipments and asked me to listen Doctor Bora's amplifier.
He loved the amplifier...me too!
But i will have my amplifier back...jellows about it...yes i am!
regards,
Carlos
http://www.youtube.com/watch?v=PI_sAILCJAU
Is playing into a friends laboratory.. the guy is an official representative of many Brazilian brands of audio equipments and asked me to listen Doctor Bora's amplifier.
He loved the amplifier...me too!
But i will have my amplifier back...jellows about it...yes i am!
regards,
Carlos
http://www.youtube.com/watch?v=PI_sAILCJAU
I am very excited to hear that Carlos. Thank you for info and for support you are giving to my designs… that’s why you are not just a friend to me!
A friend have borrowed the TECHNO amplifier from me...and he was using into his home
He felt sound very pleasant (everybody feels this way) and have increase volume to the maximum undistorted...well... undistorted to humans are sligtly clipped signal....and your amplifier, dear Bora, can produce more than 80 watts RMS into a 8 ohms speaker when entering clipping and can do that in a very easy and elegant way.
The speakers the guy had were RCA... 80 to 100 watts driver units (really) and one unit, the one attached to the Techno burned because of excess of power... long term overloaded...melted coil and smelled bad.... i think speakers are specified in IHF standards, when your amplifier was putting out around 80 watts RMS.
The guy felt sad because of speaker and this made him return my beloved Techno to my home.... AND because had lost one speaker from his pair, he gave me the other one.
WELL..THIS WAS GREAT!... the speaker has nice sound, very modern and very flat, without vibrations and very flat response (well... as flat as others,because speakers are never flat) with low weigth plastic domes and high compliance suspensions..
So.... your Techno helped me in such way i could have this RCA speaker...now i love Techno even more.
Aahahahahah...i can let it with other friends to have more speakers..ahahahahah!
regards,
Carlos
He felt sound very pleasant (everybody feels this way) and have increase volume to the maximum undistorted...well... undistorted to humans are sligtly clipped signal....and your amplifier, dear Bora, can produce more than 80 watts RMS into a 8 ohms speaker when entering clipping and can do that in a very easy and elegant way.
The speakers the guy had were RCA... 80 to 100 watts driver units (really) and one unit, the one attached to the Techno burned because of excess of power... long term overloaded...melted coil and smelled bad.... i think speakers are specified in IHF standards, when your amplifier was putting out around 80 watts RMS.
The guy felt sad because of speaker and this made him return my beloved Techno to my home.... AND because had lost one speaker from his pair, he gave me the other one.
WELL..THIS WAS GREAT!... the speaker has nice sound, very modern and very flat, without vibrations and very flat response (well... as flat as others,because speakers are never flat) with low weigth plastic domes and high compliance suspensions..
So.... your Techno helped me in such way i could have this RCA speaker...now i love Techno even more.
Aahahahahah...i can let it with other friends to have more speakers..ahahahahah!
regards,
Carlos
Attachments
@Carlos:"Aahahahahah...i can let it with other friends to have more speakers..ahahahahah!"
In that case, I suppose I should be entitled to 15% per year, shouldn't I Carlos? 😀 😀 😀
In that case, I suppose I should be entitled to 15% per year, shouldn't I Carlos? 😀 😀 😀
yes Bora... you deserve 15 percent or more, for sure!
The guy said to me:
- "The Techno is strong!... you increase volume and the unit was not distorting, so i decided to put it all way up and move myself to the garden not to turn deaf so loud it was"
Was this way he killed the speaker... the second one that made pair with this one.
hehehehe.
Happy new year dear Bora.
Carlos
.......................................................................................................
Here you have the young man Doctor Borivoje Jagodic, he is inspecting Cyrus one...the next one he will borrow to listen after assembled...also he is watching Dunlap amplifier.... so...he may burn more speakers...as he hate to have a single one, he loves pairs..i will have more speakers very soon.... the guy name is Robson Fulco, and he is a forum member but do not speak a very good english.... worse than mine.
ahahahahahah!😉 😉
The guy said to me:
- "The Techno is strong!... you increase volume and the unit was not distorting, so i decided to put it all way up and move myself to the garden not to turn deaf so loud it was"
Was this way he killed the speaker... the second one that made pair with this one.
hehehehe.
Happy new year dear Bora.
Carlos
.......................................................................................................
Here you have the young man Doctor Borivoje Jagodic, he is inspecting Cyrus one...the next one he will borrow to listen after assembled...also he is watching Dunlap amplifier.... so...he may burn more speakers...as he hate to have a single one, he loves pairs..i will have more speakers very soon.... the guy name is Robson Fulco, and he is a forum member but do not speak a very good english.... worse than mine.
ahahahahahah!😉 😉
Attachments
He is saying i have a lot of amplifiers
asked me to wait some time as he is enjoying very much.
Now i understand why he gave me that speaker....it seems to me he is more clever than i am.
Well... i have the schematic and i can build another one in hour hour work..not so pretty, but will work fine.
Grumpft!
regards,
Carlos
asked me to wait some time as he is enjoying very much.
Now i understand why he gave me that speaker....it seems to me he is more clever than i am.
Well... i have the schematic and i can build another one in hour hour work..not so pretty, but will work fine.
Grumpft!
regards,
Carlos
Attachments
Re: There is a problem with my TECHNO... Robson,
Not very nice from him! Let us hope Techno will burn him a few more boxes... as a revenge... he... he... 😀 I am joking of course! 🙂destroyer X said:
heheheh... for sure he must burn some other speakers.
I am also kidding... receive a friendly hug dear Bora, together my wish of a happy new year.
And thanks again by all the kindness, atenttion and help you gave us this year.
regards,
Carlos
......................................................................................................
"Start to trash your childrens in advance they will trash you"
I am feeling that in my skin dear Bora... daugther is growing up... changing to be a woman and she is forgeting daddy... very sad...but this is the nature... she must fly with her own wings...... aaaagh!... you educate and waste a lot of your time and the guy with a bike comes and say!
- Come on girl!, lets have a spin!
Grumpf.... i use to hold the double barreled with salt inside the barrel.... but she may not be happy with a salt shot in that guy bum! (boom is the noise the gun does in my language!)
ahahahahah!
I am also kidding... receive a friendly hug dear Bora, together my wish of a happy new year.
And thanks again by all the kindness, atenttion and help you gave us this year.
regards,
Carlos
......................................................................................................
"Start to trash your childrens in advance they will trash you"
I am feeling that in my skin dear Bora... daugther is growing up... changing to be a woman and she is forgeting daddy... very sad...but this is the nature... she must fly with her own wings...... aaaagh!... you educate and waste a lot of your time and the guy with a bike comes and say!
- Come on girl!, lets have a spin!
Grumpf.... i use to hold the double barreled with salt inside the barrel.... but she may not be happy with a salt shot in that guy bum! (boom is the noise the gun does in my language!)
ahahahahah!
Re: heheheh... for sure he must burn some other speakers.
which says: "Beautiful daughter Carlos! Luckily, she is obviously like her mum… I can’t even imagine her disaster if by any chance that turned otherwise… Ha… Ha… Ha… " 😀 😀 😀
We also have a marvelous aphorism: "Start trashing your children as soon as you notice that they are reminding you of yourself!"
BIG HUG FRIEND!
Yes I saw your picture with daughter in a "Happy Holidays" thread, but it seems you haven't noticed my answer there! 😉destroyer X said:
which says: "Beautiful daughter Carlos! Luckily, she is obviously like her mum… I can’t even imagine her disaster if by any chance that turned otherwise… Ha… Ha… Ha… " 😀 😀 😀
We also have a marvelous aphorism: "Start trashing your children as soon as you notice that they are reminding you of yourself!"
BIG HUG FRIEND!