At 05:05 PM 4/3/2006 -0500, you wrote:
>How close does a transformer have to match the device's listing?
You *must* match polarity and type (i.e. DC or AC), .. voltage can be a tad
high (but not lower) - e.g. a 12V input can probably accept 12-14V.
>We've got several devices at ByteWorks which describe the input
>voltage with a little symbol that looks like this:
>
> 6V DC
> (-)--C*--(+)
>
>The asterisk is actually a dot is should be inside the C. The symbol
>means the outside contact is negative and the inside contact is
>positive. (anyone know the name of that symbol?)
ahh, .. a dot? It is just indicative of the center connector (pin or socket).
>The transformers have corresponding information:
>
> Input: AC 120V 7W 60HZ
> Output: DC 6V 500mA
> (-)--C*--(+)
Is that not identical to the requirement, or did I miss something? You're
showing a +6VDC on center requirement, and a +6VDC [center] wall wart?
>That is, can I plug in a transformer with 9V output
>into a 6V input, or use a transformer that can output 1200 mA instead
>of 500mA?
1200 mA is not a problem, as it is just 'capability' - you can go higher
but not lower.
A 9V could be a problem in a 6V input, .. it's also the 'type' of input.
12V can really mean anything from 12 to 16 volts, whereas 6 or 9 VDC would
be a 'regulated' power supply.
You probably won't hurting anything by trying the 9V on a 6V input.
Lee
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