Osmolator power supply died

[Hammer]

Roger, my power supply finally died on me (been a few years using this GREAT product!).
And now I need to replace it.
I had always ran it on 12v as you said it was fine to do.
My question, I have piles of power supplies laying around, but I don't know what mah is best to be used.

On that note, it seems that the plug for this that goes into the osmolator itself is NOT a common size! Do you know what the size/type is for it? I know radio chack has tons of this stuff, and even the adaptors for doing this as well.

I noticed a little corrosion on the end of the plug, so I am assuming that this is what was causing my latest issues with the unit being touchy about how I plugged it in. I had to wiggle just right before it would keep the power on.
I borrowed a power supply that happened to plug in, and it works perfectly again, no wiggling, etc.
But I have to give that one back, and I want one that matches up optimally.

Thanks again Roger.
Ed McCammon

 

[rvitko]

It is a common size, I am not positive but if I remember it is 5mm with a 2.5mm hole. The transformer is tip positive with 800mA at 9V. If you buy it at Radio Shack, get 12V as there power supplies always seem to produce a bit less than they are rated for and the 9V may not be enough. I know it doesn't run our CO2 Controller very well and my tests showed it really produced 8.5V and ours is more like 10V at the 9V setting.

 

[Hammer]

Hmm, good point on the power supplies not being up to snuff.
Ok, so 800 mah is ok at 9v, so anything close at 12v should be ok. I will aim a little lower for amperage though.

 

[rvitko]

It should be 800mA regardless of voltage 9 or 12V. Don't get me wrong, the radio shack units are well made and reliable, just put out less power.

 

[Hammer]

Ok, got it!

Thanks again for the prompt and helpful replies!