External power supply for CB2

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External power supply for CB2

Postby Imagined Days » Tue Aug 10, 2010 5:43 am

So, I am going thru batteries after 1 4 hour gig, and a handful of practices. I was wondering if anybody had thoughts on an external power supply for the buffer? I was just going to run a wire off of my pedal board and up to the battery clip that I would hang out of the back guitar cavity. Any thoughts? Thanks!

Chris
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Re: External power supply for CB2

Postby tigerstrat » Tue Aug 10, 2010 9:14 am

My best guess: you've been leaving the guitar plugged in all night, maybe several days in a row. I barely have to change batteries every two years.
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Re: External power supply for CB2

Postby myoung6923 » Tue Aug 10, 2010 11:22 am

I change mine every 4 months or so - and I gig a lot
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Re: External power supply for CB2

Postby tigerstrat » Tue Aug 10, 2010 1:09 pm

or perhaps there was no battery defeat wired into to the output jack, or is shorted...
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Re: External power supply for CB2

Postby Imagined Days » Tue Aug 10, 2010 3:11 pm

I don't leave it plugged in, and I believe it is wired correctly. On the CAE site is says 10 hours of battery life is expected. I get about that, and then need a change.
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Re: External power supply for CB2

Postby Imagined Days » Tue Aug 10, 2010 4:14 pm

I added a pull down 1 meg resistor a few months back like Wolf had in it at the in for the buffer to ground. I just removed this. Perhaps this was causing the battery to die fast????
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Re: External power supply for CB2

Postby myoung6923 » Tue Aug 10, 2010 4:26 pm

Imagined Days wrote:I added a pull down 1 meg resistor a few months back like Wolf had in it at the in for the buffer to ground. I just removed this. Perhaps this was causing the battery to die fast????


Maybe - depending on where it was wired in
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Re: External power supply for CB2

Postby Imagined Days » Tue Aug 10, 2010 4:28 pm

It was at the junction of the switch and the "in" to the buffer to ground.
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Re: External power supply for CB2

Postby myoung6923 » Tue Aug 10, 2010 5:01 pm

Imagined Days wrote:It was at the junction of the switch and the "in" to the buffer to ground.


That doesn't sound like it would have caused it - that ground is normally there. Do you have the defeat wired up properly - the TRS plug with the negative from the battery that gets bridged when you plug in a mono plug?
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Re: External power supply for CB2

Postby Imagined Days » Tue Aug 10, 2010 5:32 pm

I believe so......? The black wire from the battery goes to the ring of the input jack. The sleeve of the jack goes to ground, and the tip goes to the volume pot.
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Re: External power supply for CB2

Postby Imagined Days » Wed Aug 11, 2010 3:06 pm

I just talked to a guy at CAE Sound and he said they eat batteries. 6-8 hours, and you will notice signal degredation. This is what I have been experiencing. I don't know how you guys use them for so long???
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Re: External power supply for CB2

Postby myoung6923 » Wed Aug 11, 2010 4:52 pm

Sounds fishy - I used a CB2 for a couple of years and then switched to a Jangletone which has a higher output than the CB2 and it still lasts 3 or 4 months. I will be soon switching to Waldo's buffer which is a lower output and the battery should last even longer. I don't buy the 6 - 8 hrs - that's not what I experienced with it - unless they've changed something...
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