Adaptor Gives 12V instead of 9V
Some time (about a year) ago I bought some regulated 9V adaptors for a very reasonable price. Ideal for stompboxes...I never checked them until I tried to fix a problem with one of my effects while being plugged in to one of those (normally I use a battery when testing) and I got more than 12V from it.
Now I have been using them sometime and none of my pedals seem to be broken or affected by it....but...
What do you think? Can it cause harm using them?
And maybe it's wise to check voltages on an adapter!
Now I have been using them sometime and none of my pedals seem to be broken or affected by it....but...
What do you think? Can it cause harm using them?
And maybe it's wise to check voltages on an adapter!
Information
9v is the minimum it will supply under load. These things always read higher. 12v is pretty normal. You most likely will not cause any damage....but there's always a possibility depending on what you are plugging it into.
- Hides-His-Eyes
- Tube Twister
Any pedal that can't take 12V has been badly designed considering how often unregulated supplies get used.
Testing, testing, won too fwee
I have built lots of equipment over the years and although many stomps state 9v, they usually run just fine on 12V. Many of them have 9 volt linear regulators built in which brings any supply up to about 35 volts down to 9 volts. Now, some older ones don't have any regulation built in but 12 volts should still be fine, you're just biasing transistors or op amps which most always have plenty of overhead in their specifications. I would not push this much beyond 12 volts however because you never really know how well built the effects box is. If it's a digital effect, these more modern circuits have plenty of over voltage protection built in to the chips themselves. I run all my stomps and processors on 12 volts regardless of their ratings and have never had a blow out.