Search results
  1. Tridacnid

    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...
  2. Tridacnid

    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...
  3. Tridacnid

    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.
  4. Tridacnid

    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.
  5. Tridacnid

    Stacker II- Progress? Availability?

    Last time I checked out the project's thread, it sounded like the beta builds were blowing transistors or something.
  6. Tridacnid

    Quick Question Concerning Dual Rail PSU

    Thanks for the link. It looks like that's exactly what I need.
  7. Tridacnid

    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?
  8. Tridacnid

    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: How come I can't just use a PSU that supplies +18...
  9. Tridacnid

    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.
  10. Tridacnid

    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!
  11. Tridacnid

    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.
  12. Tridacnid

    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.
  13. Tridacnid

    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.
  14. Tridacnid

    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.
  15. Tridacnid

    Settlers of Catan

    It's almost as awesome as D&D, but doesn't need a bunch of people who are crazy to play it.
  16. Tridacnid

    Band Name Game!

    Quote: Originally Posted by chews89 Abbey Lincoln Nightwish
  17. Tridacnid

    whats your favorite song

    I prefer full albums. Or a group of songs on an album.
  18. Tridacnid


    That would be a 1/4 inch plug. Most high end equipment use them. I'm pretty sure Grado sells an adapter that goes from 3.5mm to 1/4".
  19. Tridacnid

    Jethro Tull - Aqualung

    Go listen to "Songs From the Woods." Velvet Green is better, IMO.
  20. Tridacnid

    Who here is a high school audiophile?

    I am. Going into my Junior year. See my sig for what I have.
  21. Tridacnid

    Ok W T F

    Oh. Well, it may be a better amp than anything you have now. More power available would help bring out details.
  22. Tridacnid

    Ok W T F

    And the bass is still a live instrument: No equipment is between you and the signal. No compression, no file size, no bitrate, no nothin'.
  23. Tridacnid

    LD MK III scratch noise

    No problem! Enjoy the sound!
  24. Tridacnid

    Does the transport really matters?

    Nope. It streams audio from your computer over a wireless network. A power filter is something that filters out the "dirty" (depends on where you live and how old your home is) electricity that comes through your outlets.
  25. Tridacnid

    Broken Grado 125i headphones voice coil? Fix - Help

    Check for tears or cracks in the diaphragm.