Date: Tue Aug 5 18:32:30 2008

Author: Bernard Cleyet

Subject: Re: AC Power Supply recommendations?

Post:

I see; a black box experiment -- I thought PIRA frowned on these.

for example, w/ out a diagramme how does yone determine if a grounded
DMM is "an issue".

bc who worked where neaerly all the expeiments were in house made.


On 2008, Aug 05, , at 15:13, Paul Nord wrote:

> sorry... no user serviceable parts inside.
>
> On Aug 5, 2008, at 4:53 PM, Bernard Cleyet wrote:
>
>> A circuit diagram would help!
>>
>> Would you attach to an e-mail to me?
>>
>> bc
>>
>>
>> On 2008, Aug 05, , at 14:23, Paul Nord wrote:
>>
>>> I'm really not sure. I might need a regulated supply.
>>> It's for a PHYWE Hall Effect setup.
>>> http://www.phywe.de/e_content.php?
>>> nav1=20&nav2=10&txtnr=1100039&ref=main&reftxt=1000039&prodnr=2000189
>>> &litnr=
>>>
>>> I've got an old regulated AC supply. But when I connect it, the
>>> readings on the PHYWE module jump around a bit. We've had to of
>>> the modules stop working entirely PHYWE has graciously repaired/
>>> replaced them. But now I'm worried about the power supply. They
>>> did confirm that I need 12 V RMS. And I've confirmed that with
>>> both an oscilloscope and a DVM.
>>>
>>> I'm suspicious that the module may really have been damaged
>>> because we were using a bench-top DVM to measure the Hall voltage
>>> and may have caused the device problems because the DVM would
>>> have grounded once side. But I can't get PHYWE or Daedalon to
>>> respond to my question about that.
>>>
>>> Paul
>>>
>>> On Aug 5, 2008, at 3:13 PM, Wolfgang Rueckner wrote:
>>>
>>>> Isn't that just a step-down transformer? -- Wolfgang
>>>>
>>>>
>>>>
>>>> On Aug 5, 2008, at 4:06 PM, Paul Nord wrote:
>>>>
>>>>> I need a 12 V AC power supply. Low power. It's just for a
>>>>> small lab experiment.
>>>>>
>>>>> I'm not finding many listings.
>>>>>
>>>>> Anyone got a quick recommendation?
>>>>>
>>>>> Thanks!
>>>>> Paul
>>>>
>>>
>>>
>>
>
>



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