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y1 gamma-1 DAC - Page 25

post #361 of 1535
1/20/09 at 11:04pm
Just to confirm, the dac automatically switches to an external 5v source in preference to the USB 5v rail when plugged in yeah?
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post #362 of 1535
1/21/09 at 2:26am
yeah
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post #363 of 1535
1/21/09 at 4:02am
Im located i norway.

Digikey is to expensivie to buy from, atleast when it's just one part.
Farnell wont sell to private customers here in norway, the only sell to companies
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post #364 of 1535
1/21/09 at 4:04am
MiRaCL, others seem to have no trouble buying from Farnell... maybe you could share an order with them in Europe.
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post #365 of 1535
1/21/09 at 3:07pm
Does anyone have a spare NKK G13JVCF bicolor switch, or is anyone buying anything from RS uk?
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post #366 of 1535
1/21/09 at 7:11pm
Quote:
Originally Posted by MiRaCL View Post
Im located i norway.

Digikey is to expensivie to buy from, atleast when it's just one part.
Farnell wont sell to private customers here in norway, the only sell to companies
I'm ordering from RS Electronics this week. RS Electronics - industrial electronic components distributor

if they have what you need let me know and I can order it for you.

Manuel
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post #367 of 1535
1/22/09 at 12:53pm

Set of 4 Gamma Ones

I finished up my set of Gamma One DACs. All are working perfectly. I posted earlier regarding using only a flux pen and the PCB tinning to solder the ICs......it works very well where the tinning is thick and results in a very clean job, but you must check each pin for electrical continuity and for mechanical rigidity because a small percentage of pins do not flow properly. I use a microscope for the soldering and checking of the ICs. These are wonderful little DACs. Thanks AMB!
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post #368 of 1535
1/23/09 at 1:39am
Just a minor heads up... Digikey is currently out of stock of the TORX147PL/FT fiber optic receiver module. I called them today and they said that they expect to restock by Jan 27.
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post #369 of 1535
1/23/09 at 8:56pm
I just finished my gamma 1 dac, I think it is great, the design is so compact, the board so nicely done, I'm impressed. It sounds great too.

Now, I have a Mini3 to go with it, but somehow when I bought the case for the mini3, I managed to get something with only one metal end, so my mini3 has a metal front and a plastic back. To make the set look good together, perhaps someone who bought the custom front panels for either the gamma or the mini has a spare plain end they could send me?
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post #370 of 1535
1/24/09 at 11:23pm
Quote:
Originally Posted by rjad View Post
I just finished my gamma 1 dac, I think it is great, the design is so compact, the board so nicely done, I'm impressed. It sounds great too.

Now, I have a Mini3 to go with it, but somehow when I bought the case for the mini3, I managed to get something with only one metal end, so my mini3 has a metal front and a plastic back. To make the set look good together, perhaps someone who bought the custom front panels for either the gamma or the mini has a spare plain end they could send me?
PM sent.
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post #371 of 1535
1/27/09 at 10:32pm
I had the PCM2707 on the USB board of my Gamma 1 die today.
I fired up my computer and got "USB device not recognized". I swapped USB cable, checked 5V and 3.3V rails and looked the board over carefully with a loupe, but all checked out fine.
I had a spare PCM2707, so I swapped it out and now it works great.
I guess anything can fail. I am just glad the one part I had a spare of is the one that died.
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post #372 of 1535
1/27/09 at 10:42pm
grendel23, are you sure the original PCM2707 actually died? Maybe there was a marginal solder joint. The act of replacing the chip, most likely "fixed" it...
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post #373 of 1535
1/27/09 at 11:44pm
Got a question, will there be much wear and tear leaving power on to the y1 DAC 24/7 ?
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post #374 of 1535
1/28/09 at 12:56am
Quote:
Originally Posted by amb View Post
grendel23, are you sure the original PCM2707 actually died? Maybe there was a marginal solder joint. The act of replacing the chip, most likely "fixed" it...
That was my first thought, so I checked it carefully.
I had a nice fillet of solder on each pin. I also took a dental pick and checked under an 8X loupe that each pin was solidly soldered down. As far as I can tell, solder was OK. If I had thought of it, I would have re-flowed the solder before replacing chip.
Anything is possible, but I am reasonably sure chip died from unknown causes.
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post #375 of 1535
1/28/09 at 3:35am
Quote:
Originally Posted by Bismar View Post
Got a question, will there be much wear and tear leaving power on to the y1 DAC 24/7 ?
No more so than any other electronic device. It is arguable that leaving it powered up is actually better for longevity, because every time it's turned off and on, some parts go through a power surge and thermal cycle which may age them more than continuous power.
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