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Paul Marossy

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Everything posted by Paul Marossy

  1. Paul Marossy
    So if you play a chord and let it ring, it sounds like you have a Ebow on all six strings? Or does it sound like an amp that is feeding back?
  2. Paul Marossy
    Interesting. I have one guitar where the volume pot doesn't completely kill the signal. I just noticed this the other day. I need to check the grounding on that...
  3. Paul Marossy
    Yeah, that micro kill switch is pretty cool!
  4. Paul Marossy
    I just added a killswitch to a guitar that I just installed a Fernandes Sustainer into. I did do it exactly just for fun.
  5. Paul Marossy
    Yeah, I noticed a while back that the "great sustainer thread" is gone now. That's too bad that those sorts of things have to happen.
  6. Paul Marossy
    I got it figured out, I had my pickup switch wiring a little confused. I used a traditional Fender 5-way pickup switch with four solder lugs on each side and the Fernandes wiring diagram shows the type where all eight lugs are in a row. Once I figured out that I had the wires in reverse from what they should have been, I was in business.
  7. Paul Marossy
    Just letting you know that you were right about which one was the on/off switch. It's working good except for now all I need to is figure why all the pickups are always on no matter what position the pickup switch is in. I think they might have a mistake on their wiring diagram. I have the FSK-101, installation manual is here: http://www.fernandesguitars.com/support/do...-sustainer.html - I'm using the 5-position switch scheme, with a humbucker on the bridge. I'm using the traditional Fender type pickup switch, but I wired it the same way as they show in their diagram. It seems like they are missing a ground connection somewhere to ground out the unused pickups.
  8. Paul Marossy
    Your reasoning sounds good to me. That Benford sustainer mod was nicely done.
  9. Paul Marossy
    Anyone here ever put a Fernandes Sustainer pickup system in their guitar? Someone at a music store gave me a used one yesterday. I have one of my guitars all ready to install the circuitboard, but I don't know which switch is for on/off and which one is the harmonic switch. I downloaded the installation manual and it doesn't say which one is which. One of the switches is a DPDT toggle switch and the other one is a 3PDT toggle switch. Can anyone tell me which switch is which?
  10. Paul Marossy
    Aha, I knew something sounded fishy.
  11. Paul Marossy
    No crack involved, Ansil. I have, right behind me, an EMG-EQUIPPED bass with regular-value pots. The last owner was too lazy to switch the pots and the current owner (me) never uses the volume controls. The volumes don't go down to zero and the tone control didn't roll off as much as it should (till I dropped in a 25k). I wonder if the volume control is wired as a variable resistor instead of a volume control. A volume control should go to zero to full volume if it is wired correctly, no matter what the value of the pot is. Does one of the lugs go to ground? If it has a lug soldered to the pot body, but the body isn't connected to ground, it will just be a variable resistor instead of a volume control.
  12. Paul Marossy
    You could get some of the parts at RadioShack, but they won't have everything you need as their selection in stores is extremely limited these days. Places like http://www.digikey.com and http://www.mouser.com would have 95% of the components that you would need to build the circuit. You can even get stuff from http://www.radioshack.com too.
  13. Paul Marossy
    I think you need to build something like this circuit: http://sound.westhost.com/project34.htm Someone recently built it, and it sounds pretty good. Have a listen: http://soundcloud.com/jammybstard/sets/reverb-stompbox-tests
  14. Paul Marossy
    I forgot to add that what is traditionally called "vibrato" on many old amps is actually a tremolo. Vibrato is when you vary the pitch of something, as in when a violin or cello player does vibrato on a string. Or when a guitarist bends the string up and down a little bit.
  15. Paul Marossy
    I would describe a killswitch on a guitar as a "manual extreme tremolo". Tremolo is where the volume level of something is modulated up and down. Guitars have bridges that are traditionally called "tremolos", but that is an incorrect use of the word. They are in fact a vibrato system, not a tremolo.
  16. Paul Marossy
    If it's this much trouble getting the smoke odor out of something, just imagine what smoking does to the lungs. The coffee ground idea is interesting. I wonder why it would act as an odor absorbing substance?
  17. Paul Marossy
    Well, son of a gun. I guess I'll have to fix my bass then. Thanks! Another good reason for me to fix that!
  18. Paul Marossy
    Right, chronic static requires different measures. But the turning the knob trick often works for something that has been sitting for a long time. I think what happens is that the contacts just get a little oxidation on them while not in use and the mechanical action of turning the knob back and forth cleans it off and makes a good electrical contact again. And hence no more scratching noises when you turn the knob.
  19. Paul Marossy
    Sometimes you can turn the offending control knobs back and forth several times and that scratching sound will go away. They might also need to be cleaned with some contact cleaner, if you are able to spray any into the pots. If it's a "sealed" pot, it's real hard to get any contact cleaner inside of it.
  20. Paul Marossy
    A TL082 isn't too bad as far as noise is concerned. A TL072 is a lower noise opamp than the TL082 is, though.
  21. Paul Marossy
    What opamp are you using? With headphone amps, you need to use an opamp designed specifically for audio use (or for lowest possible noise) because it will have the lowest noise floor that you can get. Something like an OPA134, OP275, NE5534, etc. A 741 or something like that will be very noisy in comparison. Yes, that should be a 10pF cap. But that's a very small capacitor to use in a feedback loop. What does a 100pF do for you? That should lower the noise a bit more but not kill the high end much.
  22. Paul Marossy
    Here is another cool little page that helps indentify capacitors: http://www.electronics2000.co.uk/calc/capa...-calculator.php
  23. Paul Marossy
    Yeah, that's a good point you make there. I don't know that much about opamp design, but I do see a lot of stompbox schematics that don't use a virtual ground. Many times they are simply non-inverting opamps with input biasing.
  24. Paul Marossy
    Glad I could help.
  25. Paul Marossy
    Hmm.... OK. Well, that circuit appears to not be designed for use with a guitar. At least not for a guitar straight into it. A passive guitar pickup needs to be amplified quite a bit first before it goes to your headphones. This one here can be modified for use with a guitar - see asterisk at bottom of schematic in Figure I: http://www.headwize.com/projects/guitar_prj.htm It's based around an LM386 audio amplifier IC chip, which is pretty commonly used for this sort of thing and is good for a 1/2 watt of power.
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