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Distinction-1541 v2 complete PCB interest list
Distinction-1541 v2 complete PCB interest list
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Old 5th August 2017, 12:51 PM   #11
ryanj is offline ryanj  Australia
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Join Date: Jul 2010
Location: Frankston
Distinction-1541 v2 complete PCB interest list
Quote:
Originally Posted by sumotan View Post
Hi Ryan
Great that your selling stuffed boards. Slightly OT question,
are you also working on a receiver board to compliment
this or would you recommend a board like something from
Pedja. Also regards to i/v conversion, what would you
recommend to get the best out of your board ?

Thanks
Hi Sumotan,

Not working on a receiver PCB - That's in the too hard basket . I couldn't really recommend Pedjas USB to PCM PCB because I haven't heard it, but it definitely looks like a nice convenient package. The only thing that I dislike about his new PCB is no option to add your own clock. Other than that I think it looks great.

I would definitely recommend trying out a SEN/CEN with some batteries. Currently doing a PCB layout for a SEN pcb with -2mA CCS and shunt regs on board. I've been listening to a breadboarded shunt reg with the CEN circuit for a while now with transformers as a power source and its sounding very good. The only real issue I had was breaking a ground loop through primary to secondary capacitance of the transformer, and also using the opto isolators on the WaveIO helped break the loop. Toroidal transformers are a big no no. I'm using some E core at the moment but going to get some R core with electrostatic shielding and see how they perform.

Ryan

Last edited by ryanj; 5th August 2017 at 12:54 PM.
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Old 5th August 2017, 12:52 PM   #12
ryanj is offline ryanj  Australia
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Join Date: Jul 2010
Location: Frankston
Distinction-1541 v2 complete PCB interest list
Populated PCB list:

Kasra x 2
Johnnycr100 x 1
sthcoaster x 1
ericimage2 x 1
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Old 5th August 2017, 01:56 PM   #13
sumotan is offline sumotan  Indonesia
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Join Date: Sep 2016
Thanks for the reply Ryan. Not that Im siding Pedja
but we're speaking of one of the very few Gurus out
there who knows so much more about the 1541 dac.
Im sure that his interface will work just as well.
Maybe you should try out his interface & give us your
opinion. Im sure buyers of your stuff board would
also be seeking for your advice as they start you
piece the dac together

Cheers
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Old 9th August 2017, 01:06 AM   #14
ryanj is offline ryanj  Australia
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Join Date: Jul 2010
Location: Frankston
Distinction-1541 v2 complete PCB interest list
Quote:
Originally Posted by sumotan View Post
Thanks for the reply Ryan. Not that Im siding Pedja
but we're speaking of one of the very few Gurus out
there who knows so much more about the 1541 dac.
Im sure that his interface will work just as well.
Maybe you should try out his interface & give us your
opinion. Im sure buyers of your stuff board would
also be seeking for your advice as they start you
piece the dac together

Cheers
Yes your right. I was considering getting one to try out. Ill look into it further.

Ryan
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Old 15th August 2017, 04:12 PM   #15
JOHNNYCR100 is offline JOHNNYCR100  Abu Dhabi
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Location: Middle East someware!
Default Linear Audio Silent Switcher as a PSU for TDA 1541A

HI GENTS,

I see now Mr. Jan Diddens has kindly made available his Linear Audio Silent Switcher switcher PSU now available in the DIY Audio store, stock it gives +/-15v and +5v @150Ma according to the data supplied.

Could this be modified to give -15v/ and +/- 5v to power the TAD1541A board in this thread or (any TAD1541A for that matter? )..- is it just a question of changing the-15v to -5v (say via a resistor) to get this?

I have a very small CD player based on a Phillips pro 2 and this PCB is just the size to fit in the case along with Ryans PCB, any dears, this is the smallest combo i can think of..fantastic if it would work?...how would it sound?

Best regards
Johnny

Last edited by JOHNNYCR100; 15th August 2017 at 04:13 PM. Reason: its dross
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Old 16th August 2017, 02:09 AM   #16
ryanj is offline ryanj  Australia
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Join Date: Jul 2010
Location: Frankston
Distinction-1541 v2 complete PCB interest list
Quote:
Originally Posted by JOHNNYCR100 View Post
HI GENTS,

I see now Mr. Jan Diddens has kindly made available his Linear Audio Silent Switcher switcher PSU now available in the DIY Audio store, stock it gives +/-15v and +5v @150Ma according to the data supplied.

Could this be modified to give -15v/ and +/- 5v to power the TAD1541A board in this thread or (any TAD1541A for that matter? )..- is it just a question of changing the-15v to -5v (say via a resistor) to get this?

I have a very small CD player based on a Phillips pro 2 and this PCB is just the size to fit in the case along with Ryans PCB, any dears, this is the smallest combo i can think of..fantastic if it would work?...how would it sound?

Best regards
Johnny
Hi Johnny,

I wouldn't normally recommend a switching PSU, although if Jan Didden designed it, it is most likely to be of the utmost quality.

BUT!

There is no way of using separate supplies for the D2 PCB, as it has a completely different PSU topology, all 3 supplies (-15,-5,+5) are all stringed together and are powered by one single FLOATING 26V supply. Please have a look at the schematics here.

All you will need is a pre filtered and pre regulated supply.

This is likely all you may need to get started, although I haven't tried it yet as I am still running of SLA batteries:

Eg: Transformer (R core or E core) with electrostatic shielding if you can, diode bridge, CRC filtering/cap multiplier.

The PCB you mentioned could be used with other CD player PCBs, or the D1 PCB.

Regards,

Ryan

Last edited by ryanj; 16th August 2017 at 02:21 AM.
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Old 17th August 2017, 03:26 AM   #17
gnnett is offline gnnett  Australia
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Join Date: Jul 2004
Location: Docklands VIC3008
Populated PCB list:

Kasra x 2
Johnnycr100 x 1
sthcoaster x 1
ericimage2 x 1
gnnett x 1

Any thoughts on where to source1541's in Melbourne?

Cheers
Gn
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Old 17th August 2017, 04:07 AM   #18
ryanj is offline ryanj  Australia
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Join Date: Jul 2010
Location: Frankston
Distinction-1541 v2 complete PCB interest list
Quote:
Originally Posted by gnnett View Post

Any thoughts on where to source1541's in Melbourne?

Cheers
Gn
Hi Gn,

I think your best bet will be ebay. John Brown has sold all his surplus stock by the look of his web site. Not sure if anyone in melbourne is selling.

Good luck.

Ryan
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Old 17th August 2017, 08:58 PM   #19
tagheuer is offline tagheuer  Canada
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Join Date: Dec 2003
Location: Canada
Hi Ryan,

Is it possible to participate in this GB but just for parts only (without board and TD1541 chip)?

Thx
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Old 18th August 2017, 01:01 AM   #20
ryanj is offline ryanj  Australia
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Join Date: Jul 2010
Location: Frankston
Distinction-1541 v2 complete PCB interest list
Quote:
Originally Posted by tagheuer View Post
Hi Ryan,

Is it possible to participate in this GB but just for parts only (without board and TD1541 chip)?

Thx
Hi Ferry,

Yeah that should be fine, put your name on the list with a note next to it.

Ryan
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