non-profit ver.3 TDA1541a DAC for limited budget diyers

tube-lover · 19th May 2006, 02:45 PM

hi,

ver.3 TDA1541a cheap version.

SAA7220P/B of this dac can enable or disable, so it still can be a NOS-DAC.

use standard grade parts but still follow with 4 pcs OPA627.
Not follow with power trans. Include postage

I will prepare 10 sets for diyers o the basic price( NIL profit) with all chips, CS8414, Nano pulse trans TDA1541a, 74HCXXXX, XO oscillator & SAA7220P/B & OPA 627 X4). USD 110 include posatge,

THis is a non-profit version to limited budget diyers. If I can accumulate 50sets. I will start this project.

If finally can accumulate 50sets, diyers will collect the DAC within 20days.

PCB & parts will arrive next week, I will continous post in forum.

thx

thomas

BuckeyesRKiller · 19th May 2006, 04:37 PM

How do I sign up, what is the price, I have two friends that may want to jump on this.

jleaman · 19th May 2006, 05:34 PM

Do you have schematic or board layout pics ?

PierreG · 19th May 2006, 10:05 PM

Interesting. Want to see and read more about it.

IndyAudi · 19th May 2006, 10:25 PM

Yep,you've definitely got my attention !

tube-lover · 21st May 2006, 05:08 PM

hi,

10 sets pcb was coming & one another set was fully funish.

U will get the non-profitable ver.3 1541a will be this outlook.
same grade of parts too.

I guess ed that after the DAC arrived, all interested diyers pls sign up in here. I need to accumulate the order!!!!

thx

thomas

jleaman · 21st May 2006, 05:47 PM

Quote:

Originally posted by tube-lover
hi,

10 sets pcb was coming & one another set was fully funish.

U will get the non-profitable ver.3 1541a will be this outlook.
same grade of parts too.

I guess ed that after the DAC arrived, all interested diyers pls sign up in here. I need to accumulate the order!!!!

thx

thomas

How about a price first so we know how much we are signing up for ?

tube-lover · 22nd May 2006, 07:13 AM

Hi jileman,

price will be as I said ,

Incredible USD 110 include posatge to USA.

I was checking my stock of 5687 tubes.

If I had enough stock, I will prepare another non-profit pre amp kit which include the 5687 NOS & 6X4 or EZ80 miniwatts & pre-amp OPT kit. All parts was 1/2w or 1w Dale or same grade resisters.
price will not excess USD 130.

running in 15K: 600 & 2.4K which will most suitable for more power amp.

since standard is 600ohm output. But can series in 2.4K.

BTW, all the non-profit diyers kits will maintain not over USD 130 per one.

thx

thomas

stefanobilliani · 22nd May 2006, 10:01 AM

I am interested also...but I will like a version without the 4 opa...

tube-lover · 22nd May 2006, 04:17 PM

hi stefanobilliani,

do U mean U not like the OPA 627?? I can supply AD797 to U if U like. Also U can help me to judge which one will be better.

thxz

thomas

19th May 2006, 02:45 PM	#1
tube-lover diyAudio Member Join Date: Jul 2004 Location: Hong Kong	non-profit ver.3 TDA1541a DAC for limited budget diyers hi, ver.3 TDA1541a cheap version. SAA7220P/B of this dac can enable or disable, so it still can be a NOS-DAC. use standard grade parts but still follow with 4 pcs OPA627. Not follow with power trans. Include postage I will prepare 10 sets for diyers o the basic price( NIL profit) with all chips, CS8414, Nano pulse trans TDA1541a, 74HCXXXX, XO oscillator & SAA7220P/B & OPA 627 X4). USD 110 include posatge, THis is a non-profit version to limited budget diyers. If I can accumulate 50sets. I will start this project. If finally can accumulate 50sets, diyers will collect the DAC within 20days. PCB & parts will arrive next week, I will continous post in forum. thx thomas

19th May 2006, 04:37 PM	#2
BuckeyesRKiller diyAudio Member Join Date: May 2006	DIY dac How do I sign up, what is the price, I have two friends that may want to jump on this.

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19th May 2006, 05:34 PM	#3
jleaman Banned Join Date: Apr 2002	Do you have schematic or board layout pics ?

19th May 2006, 10:05 PM	#4
PierreG diyAudio Member Join Date: Oct 2004	Interesting. Want to see and read more about it.

19th May 2006, 10:25 PM	#5
IndyAudi diyAudio Member Join Date: Oct 2002 Location: England	Yep,you've definitely got my attention !

21st May 2006, 05:08 PM	#6
tube-lover diyAudio Member Join Date: Jul 2004 Location: Hong Kong	hi, 10 sets pcb was coming & one another set was fully funish. U will get the non-profitable ver.3 1541a will be this outlook. same grade of parts too. I guess ed that after the DAC arrived, all interested diyers pls sign up in here. I need to accumulate the order!!!! thx thomas

22nd May 2006, 07:13 AM	#8
tube-lover diyAudio Member Join Date: Jul 2004 Location: Hong Kong	Hi jileman, price will be as I said , Incredible USD 110 include posatge to USA. I was checking my stock of 5687 tubes. If I had enough stock, I will prepare another non-profit pre amp kit which include the 5687 NOS & 6X4 or EZ80 miniwatts & pre-amp OPT kit. All parts was 1/2w or 1w Dale or same grade resisters. price will not excess USD 130. running in 15K: 600 & 2.4K which will most suitable for more power amp. since standard is 600ohm output. But can series in 2.4K. BTW, all the non-profit diyers kits will maintain not over USD 130 per one. thx thomas

22nd May 2006, 10:01 AM	#9
stefanobilliani diyAudio Member Join Date: Jun 2002 Location: Italy	I am interested also...but I will like a version without the 4 opa...

22nd May 2006, 04:17 PM	#10
tube-lover diyAudio Member Join Date: Jul 2004 Location: Hong Kong	hi stefanobilliani, do U mean U not like the OPA 627?? I can supply AD797 to U if U like. Also U can help me to judge which one will be better. thxz thomas