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- Users: Tridacnid
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Help needed: Virtual Grounding, Hum, Distortion, and me throwing something out a window.
Okay, rebuilt the entire thing from the ground up. But I killed the 68nF cap in Figure 3. Replaced it with a spare 47nF I had laying around (closest thing I had) and the circuit didn't work at all. Finally figured out that Figure 3 was giving me the trouble. Replaced the cap with a 30uF cap...- Tridacnid
- Post #11
- Forum: DIY (Do-It-Yourself) Discussions
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Help needed: Virtual Grounding, Hum, Distortion, and me throwing something out a window.
My trimmer is behaving poorly.- Tridacnid
- Post #9
- Forum: DIY (Do-It-Yourself) Discussions
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Help needed: Virtual Grounding, Hum, Distortion, and me throwing something out a window.
Thanks for all the help guys. I'll go back and triple check everything and look at the grounding. Keep the ideas coming!- Tridacnid
- Post #8
- Forum: DIY (Do-It-Yourself) Discussions
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Help needed: Virtual Grounding, Hum, Distortion, and me throwing something out a window.
Hey all. This isn't my first build, but I'm currently attempting the "Infinity Universal Preamp" for my bass guitar. And it ain't going too well. My building has always been a mess, but it works. So far, I've gotten audio to output, but it's incredibly distorted and there's a ton of hum. The hum...- Tridacnid
- Thread
- Replies: 10
- Forum: DIY (Do-It-Yourself) Discussions
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Tubeheads - what's up with these tubes?
Nope. Either they are from different eras (and thus different production designs), or they aren't the same tube.- Tridacnid
- Post #2
- Forum: Headphone Amps (full-size)
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Installing IEC Socket
Unplug the device before you do this.- Tridacnid
- Post #4
- Forum: DIY (Do-It-Yourself) Discussions
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Apple's headphone Guide
Quote: Originally Posted by Uncle Erik Eh, who cares? There are better ways to learn about headphones. Though maybe one of the organizers for CanJam 2010 should drop an invite to Apple execs. Their products are deeply entwined with headphones - it would be good for them to come to a...- Tridacnid
- Post #4
- Forum: Headphones (full-size)
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Tube Life Question
But you can usually tell when one is on its way out. Distortion and channel imbalance are two good indicators that a tube is dying.- Tridacnid
- Post #3
- Forum: Headphone Amps (full-size)
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RA1 clone what have I got wrong??
Quote: Originally Posted by rds I thought the RA-1 uses Solens... I think it did. Maybe he just wanted different caps. Solens don't seem to get the best rap in capacitor reviews.- Tridacnid
- Post #7
- Forum: DIY (Do-It-Yourself) Discussions
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Stacker II- Progress? Availability?
Last time I checked out the project's thread, it sounded like the beta builds were blowing transistors or something.- Tridacnid
- Post #5
- Forum: DIY (Do-It-Yourself) Discussions
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Quick Question Concerning Dual Rail PSU
Thanks for the link. It looks like that's exactly what I need.- Tridacnid
- Post #6
- Forum: DIY (Do-It-Yourself) Discussions
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Quick Question Concerning Dual Rail PSU
Oh. Oops. When you say crude, does that imply a bad design, or a non-optimal, yet still on par, way of doing it? But what's the opamp doing, then? And why can't I just bypass this all with a +18V regulated power supply? Isn't that what this is doing?- Tridacnid
- Post #3
- Forum: DIY (Do-It-Yourself) Discussions
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Quick Question Concerning Dual Rail PSU
My next project is going to be the Infinity Universal Guitar Preamp for use with my bass. The designs call for a dual rail PSU that supplies +9 and -9 volts. See the 5th page of this: http://www.techniguitare.com/projets...ms-V1.1-En.pdf How come I can't just use a PSU that supplies +18...- Tridacnid
- Thread
- Replies: 5
- Forum: DIY (Do-It-Yourself) Discussions
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How long do tubes last?
Expect them to last a while, but plan on having a spare. That's what I do. Just like transistors, tubes can and do have failures. Fortunately, it is much easier to replace a bad tube than a bad transistor.- Tridacnid
- Post #5
- Forum: Headphone Amps (full-size)
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SQ difference from wire gauge???
Yep, there shouldn't be a difference unless you use a wire that is too thin for the current going through it. But for headphone purposes, you'll be fine with whatever kind of wire you choose.- Tridacnid
- Post #8
- Forum: DIY (Do-It-Yourself) Discussions
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A different direction...guitar "head-head" amp?
Check out this project. Could probably be easily modified to have two outputs, one in stereo for headphones, and one in mono for a power amp input. Infinity: an universal guitar preamplifier!- Tridacnid
- Post #3
- Forum: DIY (Do-It-Yourself) Discussions
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Kansas City Area.... and Surrounding, Sept. 13th at Primus Audio
Hmmm, I live in the STL area. This is a little far for me to drive (4 hours), but if the timing works out, I may be in the area. I'll keep checking to stay up to date, but don't count on me being there.- Tridacnid
- Post #4
- Forum: Local / Regional Head-Fi Meets, Parties, Get-Togethers
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DIY Sub Amp
I get a 404 message when I try the last link.- Tridacnid
- Post #2
- Forum: DIY (Do-It-Yourself) Discussions
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Alice in Chains - New single
WHAT!??!?!?! I must be living under a rock! It's good to hear that AIC will be putting out a new album. -
help - noise occurs in certain vocal passages
Ever consider that the noise is actually part of the recording? Perhaps the microphone distorted a little when she sang louder.- Tridacnid
- Post #3
- Forum: Headphone Amps (full-size)
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Little Dot series help.
DIFFERENCE: 1+ vs. MKI+. 1+ is a desktop amp that uses a hybrid design. MKI+ is a totally solid state portable amp.- Tridacnid
- Post #4
- Forum: Headphone Amps (full-size)
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Vacuum Tube Chess Set
WANT! Vacuum Tube Chess Set- Tridacnid
- Thread
- Replies: 21
- Forum: Members' Lounge (General Discussion)
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living in Canada
But jeez is it expensive. I went fishing for a week in Ignace, and we ran out of milk. A gallon of milk cost me almost $7!- Tridacnid
- Post #7
- Forum: Members' Lounge (General Discussion)
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Settlers of Catan
Quote: Originally Posted by Gatto D&D is only fun if you're playing with crazy people... if you're character isn't almost dying ever session and you don't leave at least one city in ruins by accident then you're doing it wrong. I think settlers is that kind of game too, if nobody is...- Tridacnid
- Post #14
- Forum: Members' Lounge (General Discussion)