pedal problem?

Discussion in 'Effects [BG]' started by brstma, Aug 20, 2017.


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  1. brstma

    brstma my dog is an awesome dog Supporting Member

    Nov 20, 2008
    Florida
    I just got an EBS sheehan overdrive used here on TB, and I think there is a problem with it. I haven't used an effects pedal in at least 8 years so I could use some feedback before assuming it has a problem


    I've noticed 2 potential issues:
    1- the battery dies overnight even though the effect is turned off and the light is off. I do leave the cable plugged in but I'm pretty sure that shouldn't kill the battery if it's off. It killed 2 Duracells in 2 nights

    2- it picks up noise from my amp and even radio signals sometimes. When I move the pedal around I can hear a change as it moves closer or further from the amp. Never heard this without the pedal connected and it goes away when I go straight to the amp.

    Can anyone with one of these pedals confirm if this is definitely a sign of something wrong?
     
    Last edited: Aug 20, 2017
  2. Adamixoye

    Adamixoye A PT Pro is cool for worship, right?

    Apr 9, 2012
    Occasional Beta Tester for Confusion Studios, Singular Sound, and Source Audio
    Re: #1, why not try it without leaving it plugged in overnight? It's been a very long time since I've used batteries in any pedals, but leaving a cable plugged into an active bass will drain the battery in the bass, so it wouldn't shock me if it's the same here?
     
    Spidey2112 likes this.
  3. brstma

    brstma my dog is an awesome dog Supporting Member

    Nov 20, 2008
    Florida
    Well, the difference is the pedal has an on/off switch and most active basses don't unless they have active/ passive switchable electronics. It has been years since I've had an effects pedal but the ones I had before did not kill the battery when the cable was still in if it was turned off. I do have a tuner pedal and it does not use the battery when it's off and cable is plugged in.
     
  4. Adamixoye

    Adamixoye A PT Pro is cool for worship, right?

    Apr 9, 2012
    Occasional Beta Tester for Confusion Studios, Singular Sound, and Source Audio
    Yes, I understand the potential differences, but I think there is a chance that it would work that way. I believe my Boss ODB-3 drained the battery when the cable was plugged in even when off. That had a buffered bypass. The EBS looks like it's true bypass, but maybe something in the way it switches on and off or how it does the FX loop drains the battery?

    As I said before, it's easy enough to test instead of speculating/guessing...
     
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  5. Mosfed

    Mosfed

    Apr 21, 2013
    Washington DC
    Partner - CCP Pedals
    Pedals that are left plugged in (usually it's the input jack that triggers it) drain the battery even if turned off. This is very common.

    As to the interference, not sure what's going on there
     
    smogg, Spidey2112, Aqualung60 and 3 others like this.
  6. brstma

    brstma my dog is an awesome dog Supporting Member

    Nov 20, 2008
    Florida
    I actually already did that one night and it does not kill the battery with the cable unplugged. The first time I thought I probably left the pedal on by mistake. The next night I unplugged it, then last night I left it plugged in and made sure it was off and battery still drained. I did consider it might be normal for this pedal even though I've never experienced this with other pedals

    So I would need someone with this exact pedal to confirm if this is normal or not
     
  7. brstma

    brstma my dog is an awesome dog Supporting Member

    Nov 20, 2008
    Florida
    OK, there's something I just never knew. But it can't be the same for all pedals because my tuner doesn't do it and a couple I had years ago didn't either.

    At least it's not a problem...and it's strange they don't warn you in the manual
     
  8. Mosfed

    Mosfed

    Apr 21, 2013
    Washington DC
    Partner - CCP Pedals
    I think it's so common manufacturers don't even mention it anymore. A few will but honestly I think fewer and fewer people have time for batteries with pedals when products like the One Spot are so cheap and reliable.
     
    Last edited: Aug 20, 2017
    smogg, lfmn16, SLO Surfer and 4 others like this.
  9. brstma

    brstma my dog is an awesome dog Supporting Member

    Nov 20, 2008
    Florida
    So the battery issue is explained. I already ordered a power supply jumper because my tuner has a power out with matching polarity

    Just wondering about the spanish radio and amp noise (high pitched whine) it picks up on occasion. I read that a lot of wah pedals pick up radio. Not sure if others do too.
     
  10. nshuman

    nshuman

    Sep 4, 2012
    WWWJWWW
    Yup,in most pedals, the switch is just a bypass, not an actual on off. The switching input jack is the "battery switch".
     
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  11. SunnBass

    SunnBass All these blankets saved my life.

    Aug 31, 2010
    Columbia, Mo



    Number one has been sufficiently answered by others, leaving the cable plugged in will kill the battery, as the switch is just bypass NOT on/off. But I see that you've ordered a power supply, so problem solved.

    Number two can be multi-faceted, it could be the electric wiring in the room or the house/apartment altogether, and the pedal is just highlighting the fault. It could be poorly shielded cables and the pedal is just highlighting the fault, it could be the amp itself and pedal is just highlighting the fault. This one will take some experimenting and may never be solved. Try other outlets, other rooms etc...
     
  12. brstma

    brstma my dog is an awesome dog Supporting Member

    Nov 20, 2008
    Florida
    Yeah, I had a feeling it could be other things too. I'll have to spend more time experimenting. The radio hasn't happened since Friday night but the amp noise is always there, and it's worse with one of my two basses. I'll have a friend bring his bass and amp over too so I can test and compare
     
  13. DavC

    DavC

    May 17, 2005
    Tallmadge , Ohio
    pedal 1/4 plugged in = ON = dead battery over night

    noise = wrong kind or bad cable ( as in , unshielded speaker cable )
     
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  14. brstma

    brstma my dog is an awesome dog Supporting Member

    Nov 20, 2008
    Florida
    As far as the cables are concerned I have Monster Studio Pro 1000 cables all around: instrument, patch and speaker. They cost a fortune so I'm pretty sure it's not that.
    I did try other cables too but no difference
     
  15. brstma

    brstma my dog is an awesome dog Supporting Member

    Nov 20, 2008
    Florida
    So now I'm sure the whine noise is from my amp and possibly one of my basses. I can hear the whine noise faintly from the amp/ cabs with nothing else connected. I just got the bass and it has a push/pull volume pot. In the up position the noise goes away, in the down position it is amplified only when the bass volume is at 100%. It's still there without the pedal connected. On 3 other amps with this bass, with and without the pedal, the noise is not there. So it seems my amp is making the noise too faintly to hear normally, but this bass is amplifying the noise but only when the volume pot is in the down position with volume at 100%... WEIRD!



    But the radio it picked up the other day happened without an instrument connected and I unhooked the pedal from the amp and it went away.

    So I'm still wondering if it's normal for an overdrive pedal to pick up a radio station
     
    Last edited: Aug 20, 2017
  16. Is your pedal sitting on or near your amp? Have you tried it on the floor and away from your amp, like it might be set up for a live performance?
     
  17. brstma

    brstma my dog is an awesome dog Supporting Member

    Nov 20, 2008
    Florida
    I have moved it around some, but I believe I have eliminated the pedal as the source of the noise (see last post I made)

    Now the only question I have is about it picking up a radio station - is it normal?
     
  18. My home made fuzz picks up some radio station or other. It's therefore not impossible, but mine was to a very basic design with no kind of buffers.

    From playing about with mine in the past I believe it will be your leads that are picking up the interference, and the pedal is amplifying that interference before it then gets to your bass amp.

    Try a shielded cable before and/or after the pedal. I'd bet that will help a lot.
     
  19. Nev375

    Nev375

    Nov 2, 2010
    Missouri
    Radio interference in an audio device is often due to poor shielding. But this pedal is in a metal box right?
    That boggles my mind. Maybe there's a shoddy ground connection to the case? I'm not sure how that can be though.
     
  20. singlemalt

    singlemalt Supporting Member

    Dec 15, 2007
    White Salmon, WA
    To me, the noise issue, radio interfearence and whine and such, sounds like a problem with your active bass's onboard preamp. It's being magnified by the gain the pedal brings to the table. More suspicious, since it comes and goes with the push/pull volume knob.

    Does it get better and worse if you point the bass in different directions? Like its acting like an antenna? Something in there is not grounded right or fried.

    Batteries suck, get a one spot of some other power supply so you stop feeding that pedal $5 batteries.
     
    Adamixoye likes this.
  21. Primary

    Primary TB Assistant

    Here are some related products that TB members are talking about. Clicking on a product will take you to TB’s partner, Primary, where you can find links to TB discussions about these products.

     
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