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3 Neutral
  1. P Bass Shielding Issue

    The reason the hum/buzz reduces when you touch strings/metalwork is that you are grounding yourself via the bass/cable to the amplifier(etc) ground. When you are near the bass but not grounded you become a source of electrical noise - generally mains frequencies and multiples thereof. So the pole piece effect implies that some of the 'bass' side pole pieces are grounded whilst the 'treble' side pole pieces are not. Test with a meter...
  2. Battery for JOYO Clip-on Tuner

    For not so easy battery requirements I can recommend http://www.smallbattery.company.org.uk/
  3. Replace or fix broken tuning machine

    JB Weld ? (It's American but likely available in UK as we have it at work)
  4. Could a lamp cause a bass neck to warp

    It's not a problem. I've never known of it causing a problem. As long as the bass is hanging vertically then the forces will be (essentially) symmetrical. The tension on the bass is dominated by the string tension. If the weight of the bass were to be an issue then there would be something seriously amiss with the design of the instrument.
  5. Effects with active basses

    Yeah - I didn't t check the Big Muff type circuits. I was looking at Fuzz Face type circuits again the other day so was fresh in my mind. Th Big Muff types have a 'proper' transistor buffer before the cliiping stage so should be okay with actives as you say. The clipping stage is driven by the buffer stage. Meaning that the result should be more consistent with different pickups / basses. Th input impedance is still quite low esp for a passive bass ( circa 140K) so in this case some form of True Bypass switching would be a good idea.
  6. Effects with active basses

    Just to note that the impedance issue relates to Si Transistors Fuzzes too, though the sound will differ (a bit :-)
  7. Effects with active basses

    The basic issue here isn't that the signal level may be too high - though that is a possible issue it's usually relatively easily dealt with . The specific issue with active basses and some effects is related to output impedance of the bass. Some pedals - basically "Fuzz Face" type circuits (Zvex Wooly etc...) rely for their characteristics on the signal plugged into it having a high impedance. Basically the output impedance of the bass is in series with the ...err...base of a BJT transistor and that influences the circuit operation. And an 'ordinary' passive pickup(s) have quite a high output impedance so that's okay. An 'active' pickup/preamp system has a much lower output impedance and the resulting sound from a "Fuzz" type circuit is generally thought to be undesireable. It also follows from that that a "Fuzz" needs to be first thing in any chain so that it sees the pickup impedance. To get around the problem you can try putting resistance (and optionally inductance) in series with the signal. I think Zvex do this with a seperate pot on one of their Fuzz pedals ( I won't name it from memory in case I get it wrong but it'll be on the website I guess).
  8. Anyone here handy with a lathe?

    Internal or external threads ?
  9. Quick neck relief question

    Sounds like a fret issue to me if it's only one fretted position showing the problem and on all strings. Disclaimer: I tend to favour minimal relief and minimum fret buzz.
  10. Quick neck relief question

    +1 This is the important thing to know.
  11. Refurb/Recondition pedals

    I recommend taking a look at the Caig Deoxit product range. (No association). Also if socket contacts have lost their 'springiness' the could try to push the contacts to compenstae. Else replace if possible ?
  12. Eden I90 Bass chorus pedal - on sale for £29

    I've had a look inside. There are several voltage regulators. IIRC both 9V and 12V. So it seems 18V would generate more heat but that might not be a problem. 12V unlikely to be okay for 12V regulator - I don't think it was a very low drop type (that might be okay if the 12V in was actually a tad more). But the 12V in should just come through unregulated which might be okay if it's already regulated and quiet enough..?
  13. Patch cable comparison test

    He has quite a lot of patience :-) I guess next stage would be to investigate the fabrication of the cables wrt screening - eg conductive foil / drain wire ; braid ; spiral shield / double spiral etc. Plugs an obvious point where screening might be compromised.
  14. Patch cable comparison test

    That link comes along with a safety warning on my PC courtesy of Avast...
  15. P bass sound in a J bass pickup

    Not necessarily. Jazz bass shape offers alternative aesthetic and there are significant differences in the neck, nut width etc...