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Power Generator for a guitar amp?

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TheNatMan

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guitar amp generator

Hey, I don't know the following pieces of information:
1. If this is the right board
2. If this is the right section of the board
3. If my little side project is even possible
but still! I am going to put this question out there, for what appears to be a group of very savvy individuals.

My problem is this: I got it in my head a few days ago to create an Amp Backpack for my guitar. That is to say, I've got this amp right here:

https://www.ultimate-guitar.com/reviews/guitar_amplifiers/peavey/decade/

and i hope to make it "portable". I am entering Stanford University this upcoming fall, and hope to join its infamous marching band. The problem, however, is that I can't play any instrument besides the electric guitar. Given the general wacky nature of the band, however, i would imagine my little scheme would fit right in, and I could be a "portable electric guitar" station.

I am a definite newcomer when it comes to power generators and their usage, but I'm hoping someone out there can help me. I would imagine the actual "backpack conversion" part shouldn't be too hard (just tacking on some straps to the thing), but my real difficulty comes in powering the thing. How might this be done? Again, I know absolutely nothing about anything in this area. I am putting my trust in all of you.

The power specifics given on the back are :
10 W RMS
4 OHMS

120 Vac
60 Hz
50 WATTS


There is a plug labeled "12V DC IN", and it appears to be a half centimeter in diameter hole.

The device comes with a three pronged power chord.

So. Am I completely out of my mind? Is it possible to provide the power I need to make the guitar loud, yet run for a minimum of 30 minutes? When it comes to finding ways to "wear" these generators, I will work out some way. But do such generators even exist? Any help would be appreciated. Thank you for your time,
THENATMAN
 

generator for guitar amp

If there is 12Vdc input the solution is reasonably simple: use ≥6Ah sealed lead acid battery .. If you drew ≈2A @12V it should last you for ≈3hours ..
Otherwise you will have to use an inverter (12Vdc from a battery to 120Vac) ..

Regards,
IanP
 

    TheNatMan

    Points: 2
    Helpful Answer Positive Rating
generator for guitar amplifiers

COOL! So how do i test how much power it "draws", and how do i decide whether to use an inverter? And another question, what is a 6aH sealed lead acid battery? I'm sorry--I really dont know anything about this stuff. Thanks for the reply though!

Added after 3 minutes:

I guess an additional question I should ask is where might I find such a battery at an affordable price, and how would I go about charging it?
 

backpacking guitar amplifier

6Ah = 6 (current x time) ..
For example, you can draw 1Amper for 6 hours, or 6Amps for 1hour ..

To find out what is the current requirement of your amplifier you will need a simple multimeter with 10A range ..
While you play try to measure the current as per attached pictures ..

These sealed batteries are not expensive and should be readily available at any hobby shop or security equipment supplier ..

Regards,
IanP
 

    TheNatMan

    Points: 2
    Helpful Answer Positive Rating
guitar power generator

Thank you very much, IanP, for all your advice thus far. You have definitely helped me get to the point where I am. However, my problem is still not finished, unfortunately.

This is somewhat of a follow up question. Here is a picture of the back of the amp, and the "plug" in question:

55_1157172328.JPG


I managed to find a 12V 7aH battery for sale for about 6 bucks at the local hobby shop, though my problems are these:

1. I was unable to get a multimeter reading from this jack. I don't know if this means it just has some sort of protective metal covering, or what, but the multimeter did nothing when the probes were placed in this jack.
and
2. The battery amp did nothing when i connected the probes of the battery to the back of the amp, with a standard black and red cable. I'm beginning to wonder what kind of plug this is--I've never seen anything like this before, and I'm also thinking I probably shouldnt be trying any kind of rig of my own until I can find what originally went in that hole.

So. Does anyone have any idea what this plug might be? Any advice would be helpful. Thanks for your time,
NAT
 

guitar amplifier 12v

I don't think a 10w amp will carry with a marching band...

but if it does, take it apart, check what comes after the transoformer. Much more efficent than switching up then recifying...I'd put my money on something in the 40 volt range, though.

Good luck.
 

power generator for guitar amps

It look like this is the DC power plug that you should look for .. see picture below ..
More info on this plug at:
**broken link removed**
These plugs are very popular and your local hobby store should stock them ..

To measure current connect multemeter between battery (+) and the plugs centre and use anotrher cable to connect battery (-) and plug's shel .. of course, plug has to plugged in the socket and amplifier should be ON ..l

Regards,
IanP
 

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