Did I damage my preamp?

[higain_guitar]

Anyone have an idea?

[siniarch]

Higain_guitar,
I'm neither an electrical engineer nor a tech, so perhaps I'm not qualified to answer this, but I've dealt with plenty of electronics and I've been able plug power supplies with more voltage than required by the component and have never had an issue with it.
Perhaps someone with more knowledge will jump in, but just wanted to perhaps ease your mind a little. The only times that I've plugged something that really caused damaged, the damaged was immediate and apparent. (burning smell, spark, etc...) And the unit didn't work after that.
So, if it sounds good, I think you should be fine.
Hope this eases your mind a little. At least until someone who really knows what he's talking about chimes in.

[Neonknight]

I wouldnt worry about it if it works fine, its not a dramatic difference in voltages so it is probably just fine.

There are usually voltage regulators inside most electronic equipments like this and they usually have a input voltage range that exceeds the voltage of the powersupply by a bit, what might become a problem is the added heat they may have to dissipate since that is what the added voltage becomes.

Sorry if im going overboard with the technical stuff, ive been working in electronics for 25 years mostly in repairs and also closely together with engineers and building protos and such.

Of course you should always use the original powersupply (or one with the same specs or better) to get the right voltage/current for the device.

If you ever need a replacement supply then be sure to get one with the specified voltage and also that it is stabilised if its a DC supply and that it can deliver enough current, so if it says 1000mA are needed you need to get supply is marked with 1000mA or higher. The voltage should always be the same though, so if it needs 12volts then get 12 volts.

I find that the supplies delivered with most things today are generic supplies and not marked with the brand of the device its supposed to power but the brand of the powersupply and this can be most confusing if you have alot of them, so my advice is to put labels on these supplies to avoid using the wrong one.

[higain_guitar]

Thanks so much for your help guys. I usually am very precise about never using the wrong adapter, but I was rushing this one day to help a friend and made a mistake.

Thanks again,
HG

[doulos30]

it's probably regulated in the circuitry to drop the voltage to what it needs which is 2 volts under the unregulated adapter normally. You probably got the regulators a little hot and it's fine. Just try not to do that again as it could shorten the life of the device.