Replies to This Discussion

Permalink Reply by Kevin (Voodoo Rat) Hoelting on June 26, 2013 at 12:19am

I am pretty sure the input is 7-12 volts on the Artec board in those kits. I say try it. The lower voltage will manifest itself in lower volumes.

If you don't have a 9v, may I suggest  a Goodwill/Salvation Army type store. They will have a jillion adaptors you can pick through at about two bits apiece. Buy several, they aren't always working right when you get them home.

Permalink Reply by Dan Sleep on June 26, 2013 at 1:07am

I had been told by the Guitar Fuel guy that they recommend a regulated power supply to avoid unnecessary hum.

One that is rated at 300-500mah will probably work.

If you have the right type of power input jack, it will automatically switch to the power supply when it is plugged in, and run off the battery when it is not.

Permalink Reply by Kevin (Voodoo Rat) Hoelting on June 26, 2013 at 1:16am

Uggh. Forgot about that. Sorry B Hound. Should have mentioned the mA s. Buzz they will.

Permalink Reply by Bama Hound on June 26, 2013 at 5:26am

I appreciate the feedback folks. I am not sure what you mean by regulated power supply, unless you mean a UPS like you plug a computer (American Power Conversions example) The whole idea was portability and able to plug in with local power. If I have to walk around with a UPS under my arm it kind of defeats the purpose. As far as the auto change over on the plug. I was dealing with a local Radio Shack counter person that couldn't grasp the fact that when I plug in my headphones I wanted my speaker to cut-off. He finally just kind of went on his way and let me dig around in the drawer and come up with what I needed. I looked for a power jack like what you are referring. Bottom line is I am not into uncharted waters here. If it works and no buzz I am gold. I had a 12volt TV one time and It took i think like a !000 ma converter. I plugged in another 12 volt adapter to it and it would not work. No harm No Foul, just no picture. I tried what  I got and there is a slight hum and t plugged the adapter in both ways into receptacle. That was with no git on it,as I said in OP I am going to work on the guitar next. We have an America Thrift Store local and if what I got doesn't work I will try there for a bigger one. I can't play so the hum I got will be well covered up.

Permalink Reply by Dan Sleep on June 26, 2013 at 9:07am

A regulated power supply is NOT a UPS or a big and bulky thing you have to carry around with you on a hand cart. It is a AC to DC converter with a special circuit in it that provides stable output voltage:

http://en.wikipedia.org/wiki/Regulated_power_supply

Don't waste your breath on anyone at Radio Shack. If it does not relate to mobile phones, they are totally clueless.

You essentially want a jack that is normally closed, and opens when the power supply is plugged in.

So, a regulated power supply (they should say "regulated" right on the unit), with sufficient amperage (mah rating) to drive the amp, and a jack that will cut the battery off when you plug the power supply in.

Permalink Reply by Bama Hound on June 27, 2013 at 8:25am

http://www.amazon.com/9V-DC-Power-Adapter-Supply/dp/B004LX146Q/ref

Permalink Reply by Dan Sleep on June 27, 2013 at 8:43am

I would think that would work just fine. It has 1000mah so it should have plenty of oomph.

Permalink Reply by Bama Hound on June 27, 2013 at 6:26am

Thanks Folks, I now know how to go. 

Permalink Reply by Bama Hound on June 27, 2013 at 8:37am

Is this what I need? Reviews on item are mixed, mainly say to watch polarity.

Permalink Reply by Dan Sleep on June 27, 2013 at 8:47am

Yea, you don't want to get the positive and negative mixed up.