The Jazz Guitar Chord Dictionary
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  1. #26

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    Quote Originally Posted by Stringswinger
    There is however a ground issue. It sounds like a single coil buzz, even with my humbucker guitars. (If anyone has a solution for this issue, please post it here!)

    Hmmm, how do you connect the battery to that amp? Have you checked if the earth wire of its mains connection is connected to the battery -/ground when you're running on battery power?

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  3. #27

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    Quote Originally Posted by RJVB
    Hmmm, how do you connect the battery to that amp? Have you checked if the earth wire of its mains connection is connected to the battery -/ground when you're running on battery power?
    The Battery pack has a three prong outlet that I plug the amp into.. As the battery in inside the battery pack, I have no idea how the grounding works inside the unit.

  4. #28

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    In reply to RJVB: interesting point about NiMH batteries, there are improved versions out now. The ones that I have read an average voltage of 1.33v, and they hold their charge for several months. I've been using them for a while (in a set of 8) as a 9v power supply for a PP3-hungry chorus pedal (the less mains leads lying about, the less chance of mains hum, also less to trip over).
    The power supply for the Orange amp is an external 'brick' type, and when plugged in it isolates the batteries. It provides a voltage of 19v. So - not a straightforward voltage to reproduce with batteries, unfortunately!

    In reply to NSJ: yes, the Bose S1 is great, but for me it's an expensive buy and how often will it be needed? In my case, once or twice a year! Also, I prefer to have some good built-in eq and fx. Remember, there's no power source available for foot pedals - unless you lug another battery around.

    As always, circumstances differ, and all we can do is offer different angles depending on our own experiences.

  5. #29

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    Quote Originally Posted by Stringswinger
    An FYI regarding a litium battery with your favorite amp:

    I use one of these "camping" battery packs with my Henriksen Blu 6 for outdoor, powerless gigs. I can do a 3 hour gig no problem. And I get the tone I want.There is however a ground issue. It sounds like a single coil buzz, even with my humbucker guitars. (If anyone has a solution for this issue, please post it here!)

    A switched-on friend of mine solved the grounding issue with his sine wave battery pack this way.


    Loar 700 with floater - 1st bandstand gig with no power-img_20221201_090715_01-jpg

    He said "Grounding the mixer via a nail in the ground seems to pretty much take care of that buzzing problem. Use any spare jack - only ground is wired in."

  6. #30

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    Quote Originally Posted by Stringswinger
    The Battery pack has a three prong outlet that I plug the amp into.. As the battery in inside the battery pack, I have no idea how the grounding works inside the unit.
    Ah, OK, the pack provides you with a portable wall/mains outlet. You could open the pack to see it the earth connector is connected to the battery's ground but I would expect that to be the case. Then you must have some sort of floating ground/ground loop and

    Quote Originally Posted by Craiguitar
    He said "Grounding the mixer via a nail in the ground seems to pretty much take care of that buzzing problem. Use any spare jack - only ground is wired in."[/COLOR]
    this might well solve it. It's actually how my mains circuit here at home is connected to the earth, though with a much longer copper rod. In fact, I almost added a quip about how you could always take such an off-the-shelve earth connector with you to my post

    Quote Originally Posted by A440
    In reply to RJVB: interesting point about NiMH batteries, there are improved versions out now. The ones that I have read an average voltage of 1.33v, and they hold their charge for several months. I've been using them for a while (in a set of 8) as a 9v power supply for a PP3-hungry chorus pedal (the less mains leads lying about, the less chance of mains hum, also less to trip over).
    The power supply for the Orange amp is an external 'brick' type, and when plugged in it isolates the batteries. It provides a voltage of 19v. So - not a straightforward voltage to reproduce with batteries, unfortunately!
    7 1.33V batteries already give you an ample 9V so why 8?

    19VDC would be 16 1.2V recharcheables (19.2V; perfectly safe), but 12 1.5V ones or 14 1.33V ones would probably do the trick too as the amp can already run on 12V (NB: 19V vs. 12V corresponds to 30W vs 20W ). It might even be safe to run off a 24V truck battery as long as you don't open up too much.
    But what I was thinking of was to connect that 12V MC battery to the actual outputs of the amp's battery compartment. You should be able to identify which those are with the batteries removed.

  7. #31

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    Yes, thanks RJVB, I hadn't thought about using 16 AAs, it's just a case of doing the maths. Finding something to house all of them would be tricky though. I have a case for 8, so I could look for two more like it and wire them in series. That would give me the full power of the amp. For the moment though, stuffing 10 of them in the built-in compartment works well enough, with another 10 in reserve. They are slightly bigger than the standard AAs but they do just about fit in.
    Sorry to the OP if we've gone a bit off-topic here!

  8. #32

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    Quote Originally Posted by A440
    That would give me the full power of the amp.
    Question is how long they'd last. I think that 10 1100mAh batteries in series still only have 1100mAh capacity.

    This discussion is relevant to the OP's question, no?!

  9. #33

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    Quote Originally Posted by A440
    Sorry to the OP if we've gone a bit off-topic here!
    Not at all! A lot of interesting stuff here thanks.
    Been shopping with the missus today and must've seen half a dozen buskers with Street Cube ex amps. Very tempted but not sure if i want to be spending that much but it seems for me a quick fix.
    In the meantime I should be trying, in a couple of days, an old Peavey Solo 15w combo (10w with batteries). My guess is that it wont quite be loud enough but it's going for very little money so worth a punt.

  10. #34

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    Quote Originally Posted by garybaldy
    half a dozen buskers with Street Cube ex amps. Very tempted but not sure if i want to be spending that much but it seems for me a quick fix.
    Apparently you just need to take up busking for a while pay for one

    (BTW, my new battery charger gives all kinds of information and I noticed that the Apple-branded batteries I have indeed give 1.33V. Guess I was right thinking Apple would not put their name on lousy stuff )

  11. #35

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    Quote Originally Posted by RJVB
    Apparently you just need to take up busking for a while pay for one

    (BTW, my new battery charger gives all kinds of information and I noticed that the Apple-branded batteries I have indeed give 1.33V. Guess I was right thinking Apple would not put their name on lousy stuff )
    Yeah. I'd never get my money back but if I got a decent used one ultimately my kids would benefit from the sale and I would have fun with it. Better than money in the bank. I've either gigged indoors or outdoors and busked most of my life (also holding down a day job) since the 60s. I'm retired now and may get the chance of more day time gigs, some of which may be powerless. All outdoor jobs I've done have had power except busking GJ with just 2 guitars (I
    have a very loud Favino!) There has been only a very few occasions that I have had to miss through no power. I haven't been too bothered by this as they'd mostly be in the day Saturdays and Sundays which wouldn't go down too well with the missus but now I'm retired she's glad to see the back of me!!
    Enough babbling!

  12. #36

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    A quilter superblock can be powered 9v, 12v or 24v dc.
    obviously the height the voltage the higher the effective headroom and output wattage.
    just an option. I think the little Vox amps also take dc supply if you are after different flavours.

  13. #37

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    The power stations also output at least 12VDC, some provide other voltages, almost all 5VDC through a USB-style port. I have a cable which converts USB 5V output to 9VDC, and is sometimes convenient for powering pedals.