From: Jim Yanik on
D from BC <myrealaddress(a)comic.com> wrote in
news:MPG.25d26f49d606f283989683(a)209.197.12.12:

> In article <p7qgm598r4tjkffr4in0n2na963iknvsir(a)4ax.com>,
> jjlarkin(a)highNOTlandTHIStechnologyPART.com says...
>>
>> On Tue, 02 Feb 2010 08:36:38 -0500, PeterD <peter2(a)hipson.net> wrote:
>>
>> >On Mon, 1 Feb 2010 23:54:20 -0800, D from BC <myrealaddress(a)comic.com>
>> >wrote:
>> >
>> >>The UT804 bench multimeter..
>> >>It's got Farrari racing red!
>> >>Ebay item 270516514042
>> >>http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&item=270516514042
>> >>
>> >>But it's $275 with free shipping off Ebay.. :( mmmmmm
>> >>
>> >>imo it's got a beautiful front panel design including the display.
>> >>
>> >>I might buy it.
>> >
>> >From Hong Kong? A cheap chinese knockoff? Buying something like that
>> >takes guts!
>>
>>
>> Hey, the Keithley 2100 is a cheap Chinese knockoff!
>>
>> John
>
>
> I spotted a Keithley 2000 bench multimeter 6.5digit on ebay selling for
> $850US.
> For general use, I suspect this is not cheap.
>
>
>

11 years ago,the HP 14401A 6.5 digit DMM was only $900,ISTR.
It was a pretty good meter.

--
Jim Yanik
jyanik
at
localnet
dot com
From: JW on
On Tue, 2 Feb 2010 10:40:18 -0800 "Joel Koltner"
<zapwireDASHgroups(a)yahoo.com> wrote in Message id:
<ok_9n.148477$er1.130137(a)en-nntp-07.dc1.easynews.com>:

>Slightly off-topic, but... does anyone know of a multimeter that can read out
>in dBm and lets you specify the reference impedance?

Yup. A Keithley 2000 will do that. A beautiful meter - it's what's on my
bench. Picked it up for $300 on Ebay.
From: Mike Warren on
Tim Watts wrote:

>Mike Warren <miwa-not-this-bit(a)or-this-csas.net.au>
> wibbled on Tuesday 02 February 2010 13:31
>
>
>>Yeah, I have one of those. The first one made a loud bang and fried itself
>>the first time I tried to measure mains with the USB connected to my
>>computer.
>>
>>I was very lucky not to lose my computer or fry myself.
>>
>>www.mike-warren.net/tmp/Q1520c.jpg
>>www.mike-warren.net/tmp/Q1520d.jpg
>>
>
>That's bad.
>
>Mike: is that a metal case the switch is bolted to? Did the instrument have
>an earth connection?

The back panel is metal but not grounded except though the USB cable.


>Just thinking that if so on both, why didn't it go bang when you applied
>mains to the probes?

It did.

--
- Mike
From: Joel Koltner on
"JW" <none(a)dev.null> wrote in message
news:d9lim55dbv6opu4jebsbs60ctd99p5cr3l(a)4ax.com...
> Yup. A Keithley 2000 will do that. A beautiful meter - it's what's on my
> bench. Picked it up for $300 on Ebay.

Thanks... given the rather poor battery life of HP's U1253A (8 hours), perhaps
it is better to just get a plug-in meter anyway.

From: David L. Jones on
Joel Koltner wrote:
> "JW" <none(a)dev.null> wrote in message
> news:d9lim55dbv6opu4jebsbs60ctd99p5cr3l(a)4ax.com...
>> Yup. A Keithley 2000 will do that. A beautiful meter - it's what's
>> on my bench. Picked it up for $300 on Ebay.
>
> Thanks... given the rather poor battery life of HP's U1253A (8
> hours), perhaps it is better to just get a plug-in meter anyway.

Then get the identical U1252A. Same meter and specs but with an LCD instead
of OLED and a better battery life (36 hours).
Even the U1251A still has the selectable dB reference I believe, and that's
got 72 hours life.

Also remember you can put an Alkaline or Lithium primary 9V battery in it
which should give decent usage when used intermittently.

Dave.

--
---------------------------------------------
Check out my Electronics Engineering Video Blog & Podcast:
http://www.eevblog.com


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