Recent content by AndrewFischer
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1/4" Chassis Jack
Quote: Originally Posted by dorkvader I quick search yielded this result: LUMBERG|KLBRSS 3|SOCKET, 6.35MM JACK, CHASSIS | Farnell Israel From your link: Availability: No Longer Manufactured The Neutrik jacks aren't bad. I've got an Eagle layout for the stereo M-Line...- AndrewFischer
- Post #3
- Forum: DIY (Do-It-Yourself) Discussions
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First PCB project, Bantam or Alien?
I built an Alien DAC during the PCB group buy. It is a huge improvment over the sound coming out of most motherboards. Worth doing once you know how to solder. This absolutly is NOT a beginner DIY. The PCM2702 DAC chip is in a SSOP28 package. Lead spacing is .025" Not a PCM2702, but...- AndrewFischer
- Post #7
- Forum: DIY (Do-It-Yourself) Discussions
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DIY PCB thread
Quote: Originally Posted by ROBSCIX I figured this thread will allow people to post pictures of their work and ask questions of the more experience designers. ... what software and procedure do you use? I set design parameters, and then design the device. I generally start out...- AndrewFischer
- Post #24
- Forum: DIY (Do-It-Yourself) Discussions
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Hakko 936 and Clones. Differences.
Quote: Originally Posted by chum_2000_uk British companies selling products made in the UK in the states for less than they will sell them to us! Something not quite right there Part of that is the taxes. UK prices generally include VAT while prices advertised in the US don't...- AndrewFischer
- Post #35
- Forum: DIY (Do-It-Yourself) Discussions
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DIY DAC/amp, drive bay
What sound card are you using? Some of them are terrible. There are some very small DACs out there.- AndrewFischer
- Post #11
- Forum: DIY (Do-It-Yourself) Discussions
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DIY DAC/amp, drive bay
Quote: Originally Posted by Juaquin If you use internal power, I would recommend using the 12V and regulating down to 5V with a nice big cap to filter it. An inductor, perhaps a ferrite bead with a few turns, might be a good idea too.- AndrewFischer
- Post #7
- Forum: DIY (Do-It-Yourself) Discussions
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Resistors? Is there such thing as good resistors?
Quote: Originally Posted by tomb There have been people who've built entire amps using Caddocks and claimed to notice a big difference (improvement) between that and using standard V-D's. The expense is enormous, though, and the effect probably varies with amp design. And I was...- AndrewFischer
- Post #16
- Forum: DIY (Do-It-Yourself) Discussions
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best simplified PCB layout program for MAC OSX??
Quote: Originally Posted by Juaquin Andrew, the suspense is killing me - what is that board? My best guess is some kind of amplifier with multiple outputs, each with their own volume control? It is a custom bit for a psychology lab. I was asked to duplicate an existing box. The...- AndrewFischer
- Post #13
- Forum: DIY (Do-It-Yourself) Discussions
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DIY Dedicated SPDIF PCI Card Request
Quote: Originally Posted by Denim What does it take to design a dedicated bit perfect SPDIF PCI card? Card? How about mother board? Intel DG45FC, DG45ID, DP55WG, DH57JG to name a few. All recent Apples have a mini-toslink input and output. Mac mini makes a good media server.- AndrewFischer
- Post #6
- Forum: DIY (Do-It-Yourself) Discussions
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best simplified PCB layout program for MAC OSX??
You might be able to get Olimex to make it as 2 or 4 boards on a 320x200 panel. Not ideal but you'd get around the Eagle limit.- AndrewFischer
- Post #10
- Forum: DIY (Do-It-Yourself) Discussions
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best simplified PCB layout program for MAC OSX??
The board certainly has room for improvement. Olimex made the boards. Yes Olimex. They've improved. Still have the 1 euro charge for each drill not in the standard rack. I've got part libraries that use the .9 1.0 1.1 1.3mm before plating drill sizes so I don't have to pay the drill change...- AndrewFischer
- Post #8
- Forum: DIY (Do-It-Yourself) Discussions
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best simplified PCB layout program for MAC OSX??
Eagle 5.7 / MacOS X 10.5 / Core 2 duo iMac: (This is a rev 001 board done in a huge hurry. Rev 002 looks a lot better but I don't have a photo)- AndrewFischer
- Post #5
- Forum: DIY (Do-It-Yourself) Discussions
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best simplified PCB layout program for MAC OSX??
I use Eagle. Added plus is that is is cross platform. I paid for a non-profit license version as some of my projects have grown to 160x100. Eagle has a bit of a learning curve but it isn't too bad. There is lots of help available on-line. Starting with current version, the licences...- AndrewFischer
- Post #3
- Forum: DIY (Do-It-Yourself) Discussions
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Sound only on one channel
Forgot to add -- Are you using RadioShack solder? Multicore or Kester in one of the smaller diameters makes it easier to get the right amount of solder on a connection. You don't have buy the expensive botique solder.- AndrewFischer
- Post #10
- Forum: DIY (Do-It-Yourself) Discussions
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Sound only on one channel
Looks like there might be solder bridges between the power buss and a couple of the op-amp pins. Best to follow Pars suggestion for testing. Quote: Do you think any of these parts are salvageable? Are you thinking about taking the parts off this board and starting over? I'd...- AndrewFischer
- Post #9
- Forum: DIY (Do-It-Yourself) Discussions