Bora is a nice guy from Serbia - Yugoslávia - Page 55

radio · 27th October 2009, 08:39 AM

Thanks for the scheme, the end only one question, do the amplifiers can be the power supply Us = ± 60V, and that changes should be done?
Thank you!

boraomega · 27th October 2009, 11:58 AM

@Wasim
Nice to hear everything is OK (as it should be!). Listen for a few days and then tell us your impressions.

@radio
Yes, it is safe to run it on +/-60V DC but NOT MORE than that! Everything else can be as is. Under such condition, amp is suitable for 8 ohms loads but not for 4 ohms!!! For work with 4 ohms loads you will need to add two more transistors in each rail accompanied with emitter resistors! You will also have to change R24 into 0,075 ohms/5W one.

radio · 27th October 2009, 02:03 PM

[QUOTE=boraomega;1962119]@Wasim
Nice to hear everything is OK (as it should be!). Listen for a few days and then tell us your impressions.

Thank you for your response!
Since disposal Impedance 4oma with speakers, amplifiers'll do this with 6 output transistors. Prayed would, if you are able to send this PCB amplifiers!
Thank you in advance!

boraomega · 27th October 2009, 03:08 PM

Sorry English speaking members, ONLY THIS TIME I have to write just a few sentences to RADIO in my native Serbian... or it might take few pages this way...

Za rad na 4 oma treba dodati jos po dva izlazna u svaku granu napajanja! Ne moze sa 6 komada! Nemam plocicu jer sam to konstruisao jos krajem '70-tih a tada nije bilo PC-a. Nacrt je bio na papiru ali ja vise ne mogu da ga nadjem. Moraces sam da konstruises plocicu ili zamolis nekoga. Ne moze bas sve na gotovo!

black · 28th October 2009, 03:50 PM

hello boraomega can put in place by mje 15034 and mje 15035 2sa1306 and 2 sc 3298? with thanks

boraomega · 28th October 2009, 07:57 PM

Sorry but you can not. You need complementary pair with about 250V / 4A / 20-50W and in TO220 package.

Wasim · 30th October 2009, 08:46 PM

Hi Dear Sir,

The Techno sounds really great. I have few friends invited at home. They are music lovers and I am going to play Legend stage master and Techno I will write their comments soon about your designs. And I am sure they would love it.
Sir, one small thing I would like to ask now I am very much interested making 3 way active crossover do you have any design for that ?

Regards

boraomega · 30th October 2009, 10:53 PM

Try here:
http://bas.elitesecurity.org/3wayXover.pdf

Wasim · 31st October 2009, 07:49 AM

Quote:

Originally Posted by boraomega

Try here:
http://bas.elitesecurity.org/3wayXover.pdf

Sir This is very fine. Can I have its PCB and all files?

Regards

boraomega · 31st October 2009, 07:34 PM

Check your E-mail Wasim!

27th October 2009, 11:58 AM	#542
boraomega diyAudio Member Join Date: May 2005 Location: Cacak, Serbia	@Wasim Nice to hear everything is OK (as it should be!). Listen for a few days and then tell us your impressions. @radio Yes, it is safe to run it on +/-60V DC but NOT MORE than that! Everything else can be as is. Under such condition, amp is suitable for 8 ohms loads but not for 4 ohms!!! For work with 4 ohms loads you will need to add two more transistors in each rail accompanied with emitter resistors! You will also have to change R24 into 0,075 ohms/5W one. __________________ If you are arguing with an idiot, first make sure that he is not doing the same thing.

27th October 2009, 03:08 PM	#544
boraomega diyAudio Member Join Date: May 2005 Location: Cacak, Serbia	Sorry English speaking members, ONLY THIS TIME I have to write just a few sentences to RADIO in my native Serbian... or it might take few pages this way... Za rad na 4 oma treba dodati jos po dva izlazna u svaku granu napajanja! Ne moze sa 6 komada! Nemam plocicu jer sam to konstruisao jos krajem '70-tih a tada nije bilo PC-a. Nacrt je bio na papiru ali ja vise ne mogu da ga nadjem. Moraces sam da konstruises plocicu ili zamolis nekoga. Ne moze bas sve na gotovo! __________________ If you are arguing with an idiot, first make sure that he is not doing the same thing.

28th October 2009, 07:57 PM	#546
boraomega diyAudio Member Join Date: May 2005 Location: Cacak, Serbia	Sorry but you can not. You need complementary pair with about 250V / 4A / 20-50W and in TO220 package. __________________ If you are arguing with an idiot, first make sure that he is not doing the same thing.

30th October 2009, 10:53 PM	#548
boraomega diyAudio Member Join Date: May 2005 Location: Cacak, Serbia	Try here: http://bas.elitesecurity.org/3wayXover.pdf __________________ If you are arguing with an idiot, first make sure that he is not doing the same thing.

31st October 2009, 07:34 PM	#550
boraomega diyAudio Member Join Date: May 2005 Location: Cacak, Serbia	Check your E-mail Wasim! __________________ If you are arguing with an idiot, first make sure that he is not doing the same thing.


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27th October 2009, 08:39 AM	#541
radio diyAudio Member Join Date: Oct 2009 Location: Bitola MACEDONIA	Thanks for the scheme, the end only one question, do the amplifiers can be the power supply Us = ± 60V, and that changes should be done? Thank you!

27th October 2009, 02:03 PM	#543
radio diyAudio Member Join Date: Oct 2009 Location: Bitola MACEDONIA	[QUOTE=boraomega;1962119]@Wasim Nice to hear everything is OK (as it should be!). Listen for a few days and then tell us your impressions. Thank you for your response! Since disposal Impedance 4oma with speakers, amplifiers'll do this with 6 output transistors. Prayed would, if you are able to send this PCB amplifiers! Thank you in advance!

28th October 2009, 03:50 PM	#545
black diyAudio Member Join Date: Dec 2006	hello boraomega can put in place by mje 15034 and mje 15035 2sa1306 and 2 sc 3298? with thanks

30th October 2009, 08:46 PM	#547
Wasim diyAudio Member Join Date: Aug 2007 Location: Lahore	Hi Dear Sir, The Techno sounds really great. I have few friends invited at home. They are music lovers and I am going to play Legend stage master and Techno I will write their comments soon about your designs. And I am sure they would love it. Sir, one small thing I would like to ask now I am very much interested making 3 way active crossover do you have any design for that ? Regards

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