My version of Hi-Fi Amp with optimal balances ease of assembly, cost, quality.

SergVK · 21st October 2005, 07:27 PM

http://www.powergood.boom.ru

Schematic - http://www.powergood.boom.ru/ampsch.pdf
PCB - http://www.powergood.boom.ru/amppcb.pdf

Also on page http://www.powergood.boom.ru/sborka.htm
schematic&pcb in Eagle format, scan pcb images.

Sorry, but description only on russian.

destroyer X · 21st October 2005, 07:32 PM

If possible, as a first step in construction and evaluation, tell me the resistor that must be changed because of Chip supression.

regards,

Carlos

mod_evil · 21st October 2005, 08:19 PM

Carlos,

The TL081 is a very very smal chipamps, you can buy it in saledepartament!

The datasheet of this: http://victoria.fis.uc.pt/ppessoais/...Spec/TL081.pdf

darkfenriz · 21st October 2005, 09:46 PM

Hi SergVK
Very nice design. Is the prototype ready and working?
I'm a bit affraid of the servo mechanism. It can lead to some minor oscillations at very low frequencies if input is DC-coupled because of 180 degrees phase shift. Who knows what's on the output of a preamp. Maybe a cap, maybe no cap.
Regards

Greg Erskine · 21st October 2005, 10:17 PM

Hi SergVK

I get a "load error 286" when I open your eagle files. Any suggestions?

Thanks

SergVK · 22nd October 2005, 08:04 AM

Quote:

Originally posted by darkfenriz
Hi SergVK
Very nice design. Is the prototype ready and working?
I'm a bit affraid of the servo mechanism.

Many people already assemble this amp and no any problem found with servo.

SergVK · 22nd October 2005, 08:04 AM

Quote:

Originally posted by Greg Erskine
Hi SergVK
I get a "load error 286" when I open your eagle files. Any suggestions?
Thanks

I download and open all eagle files successful.

pinkmouse · 22nd October 2005, 08:06 AM

Quote:

Originally posted by Greg Erskine
I get a "load error 286" when I open your eagle files. Any suggestions?

That means that Eagle thinks the file was created by a pirate version.

If SergVK can open it he may have an earlier release.

AKSA · 22nd October 2005, 08:06 AM

Is this too complicated?

There is complexity in the two stage diff arrangement for which there is no evident reason, at least to me. Why?

It has a high component count.

I do quite like the output stage.

Cheers,

Hugh

Greg Erskine · 22nd October 2005, 08:52 AM

Quote:

Originally posted by SergVK
I download and open all eagle files successful.

Thanks for testing it, SergVK

I downloaded the zips again and got the same error.

Quote:

Originally posted by pinkmouse
That means that Eagle thinks the file was created by a pirate version.
If SergVK can open it he may have an earlier release.

Thanks, looks like I'll have to redo it for Eagle 4.15 light, but before I even think about it, is anyone else having problems or is it just me?

Thanks

21st October 2005, 07:27 PM	#1
SergVK diyAudio Member Join Date: Jul 2004 Location: Voronezh	My version of Hi-Fi Amp with optimal balances ease of assembly, cost, quality. http://www.powergood.boom.ru Schematic - http://www.powergood.boom.ru/ampsch.pdf PCB - http://www.powergood.boom.ru/amppcb.pdf Also on page http://www.powergood.boom.ru/sborka.htm schematic&pcb in Eagle format, scan pcb images. Sorry, but description only on russian.

21st October 2005, 07:32 PM	#2
destroyer X diyAudio Member Join Date: Feb 2004 Location: Recife - Brasil Northeast	Sergei from Voronezh, can i construct it without this chip you show? If possible, as a first step in construction and evaluation, tell me the resistor that must be changed because of Chip supression. regards, Carlos __________________ Try to build an amplifier folks ... it is pure adrenaline!.. when not work first time, then becomes a nice challenge...and we usually overcome the trouble... and we feel very well to be mastering the machine.

21st October 2005, 08:19 PM	#3
mod_evil diyAudio Member Join Date: Dec 2004 Location: Rio	Carlos, The TL081 is a very very smal chipamps, you can buy it in saledepartament! The datasheet of this: http://victoria.fis.uc.pt/ppessoais/...Spec/TL081.pdf __________________ Brazilian Tube Amp Builder.

21st October 2005, 10:17 PM	#5
Greg Erskine diyAudio Member Join Date: Jan 2002 Location: Sydney/Australia	Hi SergVK I get a "load error 286" when I open your eagle files. Any suggestions? Thanks __________________ Greg Erskine

22nd October 2005, 08:06 AM	#9
AKSA diyAudio Member Join Date: Sep 2001 Location: Melbourne, Australia	Is this too complicated? There is complexity in the two stage diff arrangement for which there is no evident reason, at least to me. Why? It has a high component count. I do quite like the output stage. Cheers, Hugh __________________ Aspen Amplifiers P/L (Australia) www.aksaonline.com


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

21st October 2005, 09:46 PM	#4
darkfenriz diyAudio Member Join Date: Jun 2004 Location: Warsaw	Hi SergVK Very nice design. Is the prototype ready and working? I'm a bit affraid of the servo mechanism. It can lead to some minor oscillations at very low frequencies if input is DC-coupled because of 180 degrees phase shift. Who knows what's on the output of a preamp. Maybe a cap, maybe no cap. Regards

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Audiophile quality PA at below cost 18" woofer 1500 Watts of AMPS	LuminousMaximus	Vendor's Bazaar	1	31st March 2009 11:17 PM
Quality and low cost PCB	Dickson CHAN	Vendor's Bazaar	0	19th February 2009 03:21 AM
Professional Quality, Low cost PCB design and Manufacturing. UK	daveB0360	Vendor's Bazaar	0	3rd October 2008 03:33 PM
Best quality and lowest jitter Philips transport assembly?	mburnstein	Digital Source	8	13th January 2003 09:20 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read