I had some informs that this is a Harman Kardon schematic

destroyer X · 16th December 2004, 11:35 AM

Here is the first from 4 schematics founded.

Thank you Mjarve.

Carlos

destroyer X · 16th December 2004, 11:37 AM

A very respectable brand.

Carlos

destroyer X · 16th December 2004, 11:39 AM

Very simple...near to be deceptive, isnt'it?

Can be good?.. so simple this way?

Carlos

destroyer X · 16th December 2004, 11:42 AM

This schematic is very interesting, do you think this can be good.... so simple that way.

Mjarve, thank you.

Carlos

destroyer X · 16th December 2004, 11:47 AM

This good man helped us, not so easy to find old Harman schematics.

here is some link to check voltages:

http://crystia.accessmn.com/hkbooks/hkbooks.html

regards,

Carlos

00940 · 16th December 2004, 12:45 PM

Bah, HK is offering you all the old schematics to download for free anyway. So they're easy to find

http://manuals.harman.com/hk/Service...HK930%20sm.pdf for example for the HK 930. Just change the number.

That whole serie of the HK-x30 receivers is very good, at least the amp section. The preamp section is really keeping the amp back.

My favorite is the little integrated A-401. 25 very nice watts. I'm using two of them in a passive biamp setup, preamp sections bypassed, input caps replaced by mkp and all electrolytics changed. The schematic is the same than the HK330C but the A401 uses 2SC1030C output transistors in TO-3 package rather than the 2sd476a in to220 package used in the H330c.

They look cute :

thanh · 16th December 2004, 12:46 PM

why do you try to build a sym amp , such as a mikeb's schematic

00940 · 16th December 2004, 12:56 PM

Here's the little a401 schematic :

destroyer X · 16th December 2004, 01:42 PM

Those copyrigth laws are awfull... and also people sale equipment without schematic!...this is non sense for me....it is alike to buy a Black Box...inside can have a stone in the place of circuits!...hehehe...not so bad this way.

But a friend was making a Garage sale.... and hurricane asked a "very heavy" equipment to buy...of course, a powerfull unit..... Other friend, a guy we call Klingon, put a stone inside....when Hurricane arrived his home and discover the stone was really funny..... we runned to his home to see his reaction!... i cannot repeat the words he said to us!

Wonderfull that we can have schematics for free, and without troubles.

Thanh, related Mikeks...my God!...let Mikeks in peace...will be better, this way we gonna have peace too.

Carlos

destroyer X · 16th December 2004, 01:45 PM

A very nice "chucrute" he is.

Good bye Thanh, i am not happy with you....you cannot divide the girl in the picture...hummm...very bad this....me do not like...me good!

Carlos

16th December 2004, 11:47 AM	#5
destroyer X diyAudio Member Join Date: Feb 2004 Location: Recife - Brasil Northeast	Here you can check if Harman Kardon or not, and you can have better informs This good man helped us, not so easy to find old Harman schematics. here is some link to check voltages: http://crystia.accessmn.com/hkbooks/hkbooks.html 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.

16th December 2004, 12:45 PM	#6
00940 diyAudio Member Join Date: Sep 2003 Location: Paris	Bah, HK is offering you all the old schematics to download for free anyway. So they're easy to find http://manuals.harman.com/hk/Service...HK930%20sm.pdf for example for the HK 930. Just change the number. That whole serie of the HK-x30 receivers is very good, at least the amp section. The preamp section is really keeping the amp back. My favorite is the little integrated A-401. 25 very nice watts. I'm using two of them in a passive biamp setup, preamp sections bypassed, input caps replaced by mkp and all electrolytics changed. The schematic is the same than the HK330C but the A401 uses 2SC1030C output transistors in TO-3 package rather than the 2sd476a in to220 package used in the H330c. They look cute : __________________ Ben.

16th December 2004, 12:46 PM	#7
thanh diyAudio Member Join Date: Jan 2004 Location: ho chi minh city	why do you try to build a sym amp , such as a mikeb's schematic __________________ Justice for Victims of Agent Orange http://www.petitiononline.com/AOVN/Thank all of you!

16th December 2004, 12:56 PM	#8
00940 diyAudio Member Join Date: Sep 2003 Location: Paris	Here's the little a401 schematic : __________________ Ben.

16th December 2004, 01:42 PM	#9
destroyer X diyAudio Member Join Date: Feb 2004 Location: Recife - Brasil Northeast	That's the way i like the forum... having freedom to publish schematics. Those copyrigth laws are awfull... and also people sale equipment without schematic!...this is non sense for me....it is alike to buy a Black Box...inside can have a stone in the place of circuits!...hehehe...not so bad this way. But a friend was making a Garage sale.... and hurricane asked a "very heavy" equipment to buy...of course, a powerfull unit..... Other friend, a guy we call Klingon, put a stone inside....when Hurricane arrived his home and discover the stone was really funny..... we runned to his home to see his reaction!... i cannot repeat the words he said to us! Wonderfull that we can have schematics for free, and without troubles. Thanh, related Mikeks...my God!...let Mikeks in peace...will be better, this way we gonna have peace too. 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.


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16th December 2004, 01:45 PM	#10
destroyer X diyAudio Member Join Date: Feb 2004 Location: Recife - Brasil Northeast	MikeB, from Goodluck, i like him very much A very nice "chucrute" he is. Good bye Thanh, i am not happy with you....you cannot divide the girl in the picture...hummm...very bad this....me do not like...me good! 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.

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