AC adapter question

[John Fields]

On Tue, 6 Jan 2009 22:25:57 -0000, "teepee" <nomail@nomail.com> wrote:

"John G." <greentest@ozemail.com.au> wrote

Agreed!! only a mtere and actual contact with the device will isolate the
problem.

Well if no-one can see an obvious reason why it wouldn't work then I might
take a gamble on buying another UK adapter and assume the first one was just
a dud unit. Although it seems a bit unlikely.

---
The other course, of course, is to determine whether the adapter is
dodgy.

Do you have access to any test equipment?


JF

 

[teepee]

"John Fields" <jfields@austininstruments.com> wrote

The other course, of course, is to determine whether the adapter is
dodgy.

Do you have access to any test equipment?

Sadly not. Maybe I'll take it into a shop then.

 

[Bob Masta]

On Wed, 7 Jan 2009 08:10:11 -0000, "teepee"
<nomail@nomail.com> wrote:

"John Fields" <jfields@austininstruments.com> wrote

The other course, of course, is to determine whether the adapter is
dodgy.

Do you have access to any test equipment?

Sadly not. Maybe I'll take it into a shop then.

This would be an excellent time to invest in a
cheapie digital multi-meter. You can probably
find one for under US$10 (sometimes even $5 on
sale). You don't need anything fancy for this.

I use my late father's philosophy that, where
feasible, it is better to invest in tools (and
learn to use them), than to pay someone else.
That way after the job is done, you still have the
tools and knowledge for next time. And often it
is actually less expensive the first time, which
is probably the case here unless your shop will
test for free.

Best regards,


Bob Masta

DAQARTA v4.51
Data AcQuisition And Real-Time Analysis
www.daqarta.com
Scope, Spectrum, Spectrogram, Sound Level Meter
FREE Signal Generator
Science with your sound card!

 

[Eeyore]

teepee wrote:

"Eeyore" <rabbitsfriendsandrelations@hotmail.com> wrote

And can you repeat exactly what the label on this one says, and ideally
what the label on the one you bought in the USA says too ?

I don't have a US adapter - it didn't ship with a US adapter.

Ah !

UK one says input 230 VAC 50 Hz
output 5 VDC 500mA 2.5 VA
polarity symbol centre positive

I expect it's broken then. You could test it with a small 6V bulb to see if
anything's coming out of it.

Graham

 

[Eeyore]

teepee wrote:

"John Fields" <jfields@austininstruments.com> wrote

The other course, of course, is to determine whether the adapter is
dodgy.

Do you have access to any test equipment?

Sadly not. Maybe I'll take it into a shop then.

A small 6V bulb, say 1W and a couple of pieces of wire will test the
adaptor. I assume the polarity of the connector is correct for the unit
and is exactly the correct size. You would be amazed how many sizes there
are that may appear to mate but don't provide a reliable contact.

Graham