900W Class H Power Amplifier

waso · 04:02 PM

Hi all!
This is not my first amp, but it's a first two-rail amp in my series called "Nataly".
Specs:
Nominal power - more that 900W, 4Ohms
THD on all frequency response - less 0,03%
THD on 1kHz - less 0,005%
This amplifier was made and discussed on Russian forum: V.2013 Äâóõýòàæíûé PRO-óñèëèòåëü â êëàññå Í
Project homepage (in Russian language) - ????????? ???????? Nataly - ????? ?? ????????????????
With respect from Russia
Vadim Mogilniy.
My nick on Russian Sound forums - Waso.

khalsa · 14th April 2014, 02:34 PM

very nice sir WASO good power

waso · 06:12 AM

More photos...

waso · 11th August 2014, 10:53 AM

Final of works

waso · 22nd October 2014, 10:58 AM

I think, it's no interesting for anybody. Sorry...

sajti · 22nd October 2014, 11:10 AM

Quote:

Originally Posted by waso

I think, it's no interesting for anybody. Sorry...

Hi,

don't be sad. I checked it, and get some idea from Your design

Sajti

thimios · 22nd October 2014, 11:11 AM

Quote:

Originally Posted by waso

I think, it's no interesting for anybody. Sorry...

That isn't truth,from my point of view it's a very interesting project!
If you want to share all files like pcb, construction details e.t.c, i'm sure it is useful to some guys.

waso · 11:40 AM

Ok.
Last edited versions of files. PCBs are made for single-sided material.
Russian opto-pair AOP124 may be changed with VTL5C2, VTL5C3 with difference of pins. Russian transistor KT815 may be changed with BD139, 2SA1837, ets...

sajti · 22nd October 2014, 11:46 AM

Looks nice!

Sajti

andrewlebon · 22nd October 2014, 04:09 PM

Hi Waso
greetings do you have any audio limiter schematic to share
warm regards
Andrew

22nd October 2014, 04:09 PM	#10
andrewlebon diyAudio Member Join Date: Feb 2008	Hi Waso greetings do you have any audio limiter schematic to share warm regards Andrew __________________ Image: "It's Better to try and fail than to never know and always wonder"

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14th April 2014, 02:34 PM	#2
khalsa diyAudio Member Join Date: Dec 2007	very nice sir WASO good power

22nd October 2014, 10:58 AM	#5
waso diyAudio Member Join Date: Aug 2010 Location: Russia	I think, it's no interesting for anybody. Sorry...

22nd October 2014, 11:46 AM	#9
sajti diyAudio Member Join Date: Apr 2003 Location: Százhalombatta, Hungary	Looks nice! Sajti