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Author: DaveDave
Date: Dec 31, 2006 20:54
"amdx" knology.net> wrote in message
news:3e640$45986b2c$45011502$13667@KNOLOGY.NET...>
> "Michael A. Terrell" earthlink.net> wrote in message
> news:45982C8A.5EEB156F@earthlink.net...>> Dave wrote:
>>>
>>> Yes, the scope and counter are connected simultaneously. That's why I
>>> wondered about the counter...
>>
>>
>> Dave, does your tek scope have a "Ch 2 output on the rear panel? If
>> it does, you need to connect your counter there with a BNC cable, to
>> whatever the freq counter's input takes.
>>
> On my scope it's CH 1 output. (Hitachi)
> Mike
>
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Author: tempus fugittempus fugit
Date: Dec 31, 2006 20:13
> tempus fugit wrote:
>> Winfield wrote
>>> tempus fugit wrote:
>>> Winfield wrote...
>>>>> We'd need to see your actual circuit to comment properly. There are
>>>>> lots of ways to add noise besides the opamp. What's more, as I'm
sure
>>>>> you know, the TL071, with en = 18nV at 1kHz, is _not_ among the
quiet
>>>>> JFET opamps. For example, the AD743 has 3.2nV/rt-Hz of noise at
>>>>> 100Hz, whereas the TL071 has 25nV of noise. Hey, that's a lot!
>>>>
>>>> I could post a schem of the circuits I tried, either here or on ABSE.
>>>> I had the TL071 configured as an inverting amp with an Ri of 3.3M
>>>> and an Rf of 10M. Lowering Ri didn't really affect the noise if at
all.
>>>
>>> Whew, the Johnson noise density of a 10M resistor is 400nV/rt-Hz, ...
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Author: Don BoweyDon Bowey
Date: Dec 31, 2006 19:45
On 12/31/06 1:01 PM, in article 679gp25jp0hiaclv6ncknavc07m97hc2pk@ 4ax.com,
"martin griffith" wrote:
> On Sun, 31 Dec 2006 11:52:18 -0800, in sci.electronics.design Don
> Bowey comcast.net> wrote:
>
(snip)
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Author: John FieldsJohn Fields
Date: Dec 31, 2006 19:21
I wish you all a happy and prosperous new year. :-)
--
JF
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6 Comments |
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Author: ZakZak
Date: Dec 31, 2006 18:13
redbelly wrote:
>> krw wrote:
>>
>>> Halogens are more (about 3x more) efficient than standard tungsten
>>> bulbs, so the room should be cooler. The fixtures can get hot
>>> though. The halogens in standard bulb envelopes aren't hotter than
>>> the standard bulbs.
>
> Zak wrote:
>> Normal incandescent: 100 w, 1200 lm
>
> They're more like 1600-1750 lm, so the relative efficiency of other
> bulb types gets even worse.
Hmm, I have my data from Osram for 230 volt bulbs. That may make a
difference.
Thomas
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Author: mrdarrettmrdarrett
Date: Dec 31, 2006 18:11
Jim Thompson wrote:
> On Sun, 31 Dec 2006 17:31:43 -0800, "Paul Hovnanian P.E."
> hovnanian.com> wrote:
>>>Because most men overlook short girls.
>
> 5' is PERFECT ;-)
>
> ...Jim Thompson
> --
How tall are you, Jim? ;-)
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1 Comment |
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Author: Ken SmithKen Smith
Date: Dec 31, 2006 17:51
In article DIALUPUSA.NET>,
unsettled nonsense.com> wrote:>Ken Smith wrote:
>> In article s969.apx1.sbo.ma.dialup.rcn.com>,
>> aol.com> wrote:
>> [....]>
>>>>Are you really denying people in America are being listened to?
>
>>>Some are but none of it is warrentless.
>
>> This is flat wrong. Many americans have been and are being listened to
>> without a warrent. Bush claims that no warrent is needed.
>
>Do you have some insight into what the activities are of
>the official US sleuthing business?
Yes.
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Author: Ken SmithKen Smith
Date: Dec 31, 2006 17:34
In article pipex.net>,
T Wake gishpuppy.com> wrote:>> In article blue.rahul.net>,
>> kensmith@green.rahul.net (Ken Smith) wrote:>>>In article s804.apx1.sbo.ma.dialup.rcn.com>,
>>> aol.com> wrote:
[....]
>> Most of the weapons that will be used to kill you and yours
>> will be invisible to your eye. You may try to call them unicorns
>> and pretend the dangers don't exist. I cannot ignore them.
>
>Oh the melodrama. The false gravitas.
I'm starting to think that BAH is in cahoots with the extremists. She is
advancing their claim of wide support as though it was a fact and
supporting the invasion of Iraq. Both are things that are working in
favor of the terrorists.
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Author: Paul Hovnanian P.E.Paul Hovnanian P.E.
Date: Dec 31, 2006 17:31
Because most men overlook short girls.
--
Paul Hovnanian mailto:Paul@ Hovnanian.com
------------------------------------------------------------------
politics; n, from the Greek 'poly' meaning many and 'ticks', small
annoying blood suckers.
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6 Comments |
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Author: Ken SmithKen Smith
Date: Dec 31, 2006 17:25
In article s969.apx1.sbo.ma.dialup.rcn.com>,
aol.com> wrote:[....]
>>>>Kerry is wasting his time. Only if everyone else gets hit by lightning
>>>>does he stand a chance of getting elected.
>>>
>>>You do persist in keeping your tunnel vision.
>>
>>No, I just look at the things that are there.
>
>Exactly. And your scope has little range.
Yes, it only includes the things that are real. The set of all
non-existant things is a much larger set but not really worth examining in
this case.
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