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y1 gamma-1 DAC - Page 46

post #676 of 1535
5/17/09 at 5:46pm
There are roughly 40 of them.

Try # 863-2N3904G
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post #677 of 1535
5/17/09 at 6:02pm
Quote:
Originally Posted by MisterX View Post
There are roughly 40 of them.

Try # 863-2N3904G
Thanks. 40 of what, the "backordered" ones?
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post #678 of 1535
5/17/09 at 7:05pm
There are roughly 40 available replacements for the "2N3904BU" at Mouser.
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post #679 of 1535
5/17/09 at 8:17pm
Fabulous work on the F++

Is there any chance of dimensions / .fpd for the panels? Would love this!

Also noting that there's plenty of space in the empty USB board area ...potentially RCA jacks on the rear!
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post #680 of 1535
5/17/09 at 8:59pm
I will add the panel dimensions and other info of the Full++ config to the γ1 website very soon.
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post #681 of 1535
5/21/09 at 11:14pm
I got all my parts in for my build, but have seemed to forgot an extra cap (C22D, 647-UES1E220MEM Nichicon ES 22uF 25V). If anyone has one, I'll happily pay for it. Thanks.
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post #682 of 1535
5/23/09 at 2:14pm
In AMB's parts list, the description for U9D lists101-315, but the Mouser
part # is 101-300.
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post #683 of 1535
5/23/09 at 3:10pm
That took some attention to detail to find that oversight!

It appears to be essentially the same part, just a slight difference in the VTRIP trip point.

I hadn't noticed the discrepancy, and built mine with the 101-300 part. Seems to work fine.
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post #684 of 1535
5/23/09 at 3:32pm
[QUOTE=helzerr;5705866]That took some attention to detail to find that oversight!

Yah, the result of being terminally anal!
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post #685 of 1535
5/23/09 at 3:39pm
It's not an oversight.

The MCP100-315DI/TO was not available at Mouser when we put the parts list together so we picked a replacement for you and adjusted U9D so it would match.


If you wish...The MCP100-315DI/TO is now avilable at Mouser, the part numbers are:

579-MCP100-315DI/TO
579-MCP101-315DI/TO
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post #686 of 1535
5/23/09 at 6:15pm
Well I got my gamma working last night Sounds great, currently testing it with a set of Vishay/Sprague OS-CONS. Initial impressions are that the sound is a little recessed and nasally, bypassing them with Vishay/Roederstein MKT and WIMA MKS doesn't make a noticeable difference.

Also if anyone has a set of Nichicon ES 22uF caps, let me know.
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post #687 of 1535
5/28/09 at 12:34am
My left channel output is gone. With USB input, left is very crackly, right is fine. If I pull the USB board and use COAX in with external power, silence on left and right is fine.

Power test good, and the output jack is good (continuity and low .25 ohm to the caps.)

Ideas? TIA!
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post #688 of 1535
5/28/09 at 2:19am
Wiatrob, try reflowing the solder joint at the WM8501's left channel output pin.
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post #689 of 1535
5/28/09 at 1:49pm

TORX147PLFT-ND

Does anybody have an extra Toshiba fiber-optic receiver around? I destroyed mine removing it after installing it in the transmitter position. doooh

Just checked digikey and they are back in stock.

Are there any worthwhile parts upgrades I should do since I'll have it apart? At the moment it's the standard built kit from Jeff. I've been very happy with it although maybe a bit on the bright side for my taste.
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post #690 of 1535
5/28/09 at 6:03pm
jamess71, you must be confused because Jeff does not supply a kit for the γ1.
Anyway, the only parts worth experimenting with are the output coupling caps. Opinions vary on those, so changing them might only be a "sidegrade" rather than an upgrade.
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