non-profit ver.3 TDA1541a DAC for limited budget diyers - diyAudio
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Old 19th May 2006, 02:45 PM   #1
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Default 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
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Old 19th May 2006, 04:37 PM   #2
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Default 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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Old 19th May 2006, 05:34 PM   #3
jleaman is offline jleaman  Belgium
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Do you have schematic or board layout pics ?
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Old 19th May 2006, 10:05 PM   #4
PierreG is offline PierreG  Canada
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Interesting. Want to see and read more about it.
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Old 19th May 2006, 10:25 PM   #5
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Yep,you've definitely got my attention ! Click the image to open in full size.
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Old 21st May 2006, 05:08 PM   #6
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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
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Old 21st May 2006, 05:47 PM   #7
jleaman is offline jleaman  Belgium
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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 ?
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Old 22nd May 2006, 07:13 AM   #8
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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
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Old 22nd May 2006, 10:01 AM   #9
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I am interested also...but I will like a version without the 4 opa...
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Old 22nd May 2006, 04:17 PM   #10
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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
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