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Mismatched Milliamps?
Mismatched Milliamps?
I fried some ac power adapters on a trip to Europe. They seem to be
working with some Radio Shack replacements. However, I notice that
some of them have different Milliamp ratings than the originals. Will
this damage anything?
I fried some ac power adapters on a trip to Europe. They seem to be
working with some Radio Shack replacements. However, I notice that
some of them have different Milliamp ratings than the originals. Will
this damage anything?
Re: Mismatched Milliamps?
docgorpon@aol . com wrote:
> I fried some ac power adapters on a trip to Europe. They seem to be
> working with some Radio Shack replacements. However, I notice that
> some of them have different Milliamp ratings than the originals. Will
> this damage anything?
If the ratings on the *new* ones are *less* than the *old* one,
they will *likely* burn out eventually. I've never met a
wall wart I liked anyway. Keep up the good work though.
docgorpon@aol . com wrote:
> I fried some ac power adapters on a trip to Europe. They seem to be
> working with some Radio Shack replacements. However, I notice that
> some of them have different Milliamp ratings than the originals. Will
> this damage anything?
If the ratings on the *new* ones are *less* than the *old* one,
they will *likely* burn out eventually. I've never met a
wall wart I liked anyway. Keep up the good work though.
Re: Mismatched Milliamps?
<docgorpon@aol . com > wrote in message
news:847f9e29-1276-44e6-8617-2c2f7086e9a5@a1g2000hsb.googlegroups . com ...
>I fried some ac power adapters on a trip to Europe. They seem to be
> working with some Radio Shack replacements. However, I notice that
> some of them have different Milliamp ratings than the originals. Will
> this damage anything?
If they are regulated, and the milliamps supplied is more than
required... no problem.
If they are not regulated, and the milliamps is more than required,
then the voltage could go up... perhaps too high. Many effects,
however, can go all the way up to 30VDC with no problems.
If they are not regulated, and the milliamps is less than required,
the voltage will go down.... and hum will go up.
Never use a cheeseball Euro-adapter for anything but a hair dryer.
It's only a series dropping resistor, and the voltage can climb way
high (as you no doubt found out). Dropping transformer is the
way to go... more expensive, but worth it.
__
Steve
.
<docgorpon@aol . com > wrote in message
news:847f9e29-1276-44e6-8617-2c2f7086e9a5@a1g2000hsb.googlegroups . com ...
>I fried some ac power adapters on a trip to Europe. They seem to be
> working with some Radio Shack replacements. However, I notice that
> some of them have different Milliamp ratings than the originals. Will
> this damage anything?
If they are regulated, and the milliamps supplied is more than
required... no problem.
If they are not regulated, and the milliamps is more than required,
then the voltage could go up... perhaps too high. Many effects,
however, can go all the way up to 30VDC with no problems.
If they are not regulated, and the milliamps is less than required,
the voltage will go down.... and hum will go up.
Never use a cheeseball Euro-adapter for anything but a hair dryer.
It's only a series dropping resistor, and the voltage can climb way
high (as you no doubt found out). Dropping transformer is the
way to go... more expensive, but worth it.
__
Steve
.
