[NTLK] After-market power adapter / Aftermarket voodoo

From: MKow1234_at_aol.com
Date: Thu Jun 17 2004 - 07:20:45 PDT


[It's dangerous to mess with Newtons and odd power supplies!]

The output voltage should have been listed in DC volts, not AC.
Newton AC adapters are plentiful and dirt cheap, so there's no need to go
with some off-brand adapter that might harm your Newton.

------------------------------------------

Incidentally, I recently tried a science experiment in my car, attempting to
run one of my MP 2X00s off of a Radio Shack cigarette lighter adapter. The RS
car adapter has a switch to adjust the voltage output from 3-12 volts (I set
it at 7.5 volts, of course). Output current for the device is rated at a
maximum of 300 mA. My MP ran just fine off of the adapter -- for about two
minutes. I blew one of those dinky-assed fuses inside the body of the adapter plug.
 

I'm trying to figure out why the fuse blew, and the best answer I can come up
with is that the Newton's load on the circuit was too great for the adaptor
to handle (Reminded me of the old garage band days, when I discovered that one
could not connect an infinite number of speakers in a series circuit to a
guitar amplifier rated at 8 ohms! But I digress...) I suppose that I could place
a LARGER fuse into the RS car adapter, but that would probably mean that a
secondary fuse under my car's dashboard would then fry out. If any electrical
engineers out there have a suggestion, please post a response. In the
meantime, I'm thinking a DC 12 - AC 120 power inverter is the kludgy solution to
charging the Newton on camping trips this summer.

Matt K.

In a message dated 6/17/04 4:51:56 AM Eastern Daylight Time,
newtontalk_at_newtontalk.net writes:

<< [NTLK] After-market power adapter >>

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