Hi-end phono preamplifier

quanghao · 26th June 2010, 02:54 AM

Hi all!
This toppic about Hi-end phono preamplifier, you can se all PCB and information!
Phono-End - HQaudiodesign

Hi-end phono preamplifier

quanghao · 27th June 2010, 09:06 AM

Well I can work, Sorry you had to wait long!
Quanghao

jormajj · 28th June 2010, 08:54 AM

Hi Quanghao,
the PCB s arrived today, thanks
best regards jormajj

quanghao · 28th June 2010, 10:29 AM

Quote:

Originally Posted by jormajj

Hi Quanghao,
the PCB s arrived today, thanks
best regards jormajj

Yes! good!
And some image of Phono -hi end

quanghao · 28th June 2010, 03:10 PM

SSHV for phono D3A

toufu · 30th June 2010, 12:30 AM

Quanghao, do we need center tap transformer? What size?

quanghao · 30th June 2010, 01:26 AM

Quote:

Originally Posted by toufu

Quanghao, do we need center tap transformer? What size?

Hi no need center tap. if you have center tap you can use it!

Transformer for Phono-Hi end:
In put: 110 or 220V

out-put: HV= 0-200 V/100mA, or 200 -0-200V. ore 0-200-220 V is is ok
7-9V/ 2-3A for filament D3A

toufu · 30th June 2010, 03:06 AM

Ok.. Thanks!

quanghao · 30th June 2010, 03:37 AM

Quote:

Originally Posted by toufu

Ok.. Thanks!

Note:
1. Heatsink for IRF9610 and 840
20W x 2 on board

Digi-Key - HS385-ND (Manufacturer - 530001B02500G)

2. Heatsink for Filament
10W x 1
Digi-Key - HS350-ND (Manufacturer - 529802B02500G)

26th June 2010, 02:54 AM	#1
quanghao diyAudio Member Join Date: Sep 2009 Location: Vietnam Blog Entries: 2	Hi-end phono preamplifier Hi all! This toppic about Hi-end phono preamplifier, you can se all PCB and information! Phono-End - HQaudiodesign Hi-end phono preamplifier __________________ http://www.audiodesignguide.com

27th June 2010, 09:06 AM	#2
quanghao diyAudio Member Join Date: Sep 2009 Location: Vietnam Blog Entries: 2	Well I can work, Sorry you had to wait long! Quanghao __________________ http://www.audiodesignguide.com

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28th June 2010, 08:54 AM	#3
jormajj diyAudio Member Join Date: Nov 2002 Location: Finland	Hi Quanghao, the PCB s arrived today, thanks best regards jormajj

30th June 2010, 12:30 AM	#6
toufu diyAudio Member Join Date: Jun 2008 Location: San Francisco	Quanghao, do we need center tap transformer? What size?

30th June 2010, 03:06 AM	#8
toufu diyAudio Member Join Date: Jun 2008 Location: San Francisco	Ok.. Thanks!

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