Recent content by Whit
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Need help by replacing the dual jfet 2SJ109
Quote: Originally Posted by amb They don't currently have P-channel equivalents of these devices. If they did I'd be using them for my new β22 amp, no question... Linear Systems is planning to release their version of the 2SJ74 and 2SJ109 later this year or early next year.- Whit
- Post #7
- Forum: DIY (Do-It-Yourself) Discussions
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Blackgates for C7 in an M3?
The production of BG will continue but the prices are going up. http://partsconnexion.com/blackgate/...ductionOCT.htm- Whit
- Post #10
- Forum: DIY (Do-It-Yourself) Discussions
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Cheap OPA627's "real"?
The dice are likely fabricated in the USA. The dice are then shipped to Asia for assembly. The assembled products are then shipped back to the USA and elsewhere with the "origin" labeled as the south Pacifiic.- Whit
- Post #19
- Forum: DIY (Do-It-Yourself) Discussions
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determining proper rail capacitance
Try removing the 1uf cap and leave the 1000uf where it is.- Whit
- Post #8
- Forum: DIY (Do-It-Yourself) Discussions
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Has anyone here used Belden 1506a?
I have used it for a spdif cable. I believe in this application it sounds quite good. It is pretty flexible as far as coax goes but don't expect it to be like standard hookup wire.- Whit
- Post #2
- Forum: DIY (Do-It-Yourself) Discussions
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PPA Parallel Cap Resonance
Quote: Originally Posted by steinchen quote from tangent's part selection guide: This resistor (R8) forms an RC-low pass filter for the op-amp power rails in conjunction with C4||C5. (-> noise isolation) Where have you read about the unwanted resonances ? Look here...- Whit
- Post #6
- Forum: DIY (Do-It-Yourself) Discussions
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PPA Parallel Cap Resonance
I've read that having several parallel low esr capacitors of different values(or constructions) can cause unwanted resonances. I see that this has been dealt with partially in the ppa with the addition of R8 to add some dampening but what about the parallel combo of C1, C2, and C3?- Whit
- Thread
- Replies: 7
- Forum: DIY (Do-It-Yourself) Discussions
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IC: Elna SILMIC II Capacitor group buy
I'd like twenty of each if it's not too late.- Whit
- Post #45
- Forum: DIY (Do-It-Yourself) Discussions
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STEPS consistently blows when connected to PPA...?
I would try decreasing the C1 capacitance. What I believe is happening, is that the regulator can't handle the inrush current that begins when the C1 caps are first charging up. To the regulator it looks like a dead short.- Whit
- Post #18
- Forum: DIY (Do-It-Yourself) Discussions
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STEPS consistently blows when connected to PPA...?
How much total capacitance do you have for C1?- Whit
- Post #16
- Forum: DIY (Do-It-Yourself) Discussions
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0404 or Audigy 2 ZS? Are they comparable?
Quote: For windows, the drivers for creative are broken. They really aren't good.. AT ALL. In fact, so is the hardware. Creative products in general are just not quality, no matter what anyone else tells you. Especially those Audigy cards. I don't know about the 0404 but on the...- Whit
- Post #25
- Forum: Computer Audio
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WIMA MKS-02 PCM2.5 caps in US?
You can get them at Mouser. http://www.mouser.com/index.cfm?hand..._pcodeid=50501- Whit
- Post #2
- Forum: DIY (Do-It-Yourself) Discussions
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Emu Driver Size
How much space do the Emu's drivers occupy on the HD and RAM? Can the drivers be selected to install on their own(without demo programs etc..)? I would appreciate any info. Thanks. Whit- Whit
- Thread
- Replies: 3
- Forum: Computer Audio
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major problem with phamphamduc
I just checked my email and I found that Phamducduc has refunded the money I sent him. I can't ask for a better birthday present than the resolution of this problem. Jhawk22 has also been refunded his money as well. I would like to thank everyone that helped us out. I believe that you, the...- Whit
- Post #71
- Forum: Members' Lounge (General Discussion)