A good digital oscilloscope?
in [Design]
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From: John Larkin on 15 Dec 2009 19:00 On 15 Dec 2009 21:06:11 GMT, Robert Latest <boblatest(a)yahoo.com> wrote: >John Larkin wrote: >> Of course it does. Radium phosphors will glow in the dark for >> centuries. That's what the radium is for. > >Cool! I thought they also had to be "charged" with light. They do charge, but that dies out pretty fast. Then the radium takes over to sustain the glow. If you can get an old radium-dial watch or clock, take it into a very dark room and dark-adapt for 20 minutes of so, then look at it closely, maybe with a small magnifying glass. You will see that the glow is made up of individual flashes from individual alpha particles. Since the phosphors aren't very efficient, and the alpha energy is around 5 Mev, not many photons are entering your eye at each flash. John
From: John Larkin on 15 Dec 2009 19:01 On Tue, 15 Dec 2009 16:46:37 -0500, Spehro Pefhany <speffSNIP(a)interlogDOTyou.knowwhat> wrote: >On 15 Dec 2009 21:10:28 GMT, Robert Latest <boblatest(a)yahoo.com> >wrote: > >>Jan Panteltje wrote: >>> On a sunny day (10 Dec 2009 17:34:26 GMT) it happened Robert Latest >>><boblatest(a)yahoo.com> wrote in <7ocpp2F3p9ht0U2(a)mid.uni-berlin.de>: >>> >>>>Jan Panteltje wrote: >>>>> 'Spiritus' is 85% Ethanol, and 3% Methanol, plus a horribe smell and >>>>> taste added... Vodka is expensive, and only 40%, heavely taxed here. >>>> >>>>I don't think there's methanol in it. >>>> >>>>robert >>> >>> Spiritus has it written on the bottle, contains: >>> 85 % Ethanol >>> max 3 % Methanol. >> >>That's integesting. I need to check, but I think in Germany "Spritus" is >>just alcohol plus some non-toxic but extremely bitter-tasting additives. >>OK, the German Wikipedia confirms this. No Methanol. >> >>robert > >Denaturing can use different additives. Maybe it's illegal to poison >people in Germany. these days. John
From: Jim Thompson on 15 Dec 2009 19:16 On Tue, 15 Dec 2009 17:48:42 -0600, krw <krw(a)att.bizzzzzzzzzzz> wrote: >On Tue, 15 Dec 2009 09:34:02 -0700, Jim Thompson ><To-Email-Use-The-Envelope-Icon(a)My-Web-Site.com/Snicker> wrote: > [auto-snip] >> >>Nonsense, it's a stuck accelerator pedal. So shoving in clutch or >>pushing PRNDL handle into neutral... what's the difference? > >The clutch linkage doesn't go through the computer. > >> >>If you think fast. In 1957 lost 5 high school classmates who skidded >>on the ice and got stuck on the track. Got hit by a Norfolk and >>Western coal train doing about 100MPH :-( >> >>(Thompson's rule: RUN perpendicular to the tracks ;-) >> >> >>That's really not new. I had a 1950 Nash and a 1953 Hudson Jet that >>both required full depression of the clutch to activate the starter >>switch. > >But your starter switch was *on* the floor boards. ;-) Natch, under the clutch pedal ;-) >> >>Keep deluding yourself... you're fitting better and better into >>Californication ;-) > >Cruel. ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | Help save the environment! Please dispose of socialism properly!
From: Michael A. Terrell on 16 Dec 2009 00:20 Tim Williams wrote: > > "JosephKK" <quiettechblue(a)yahoo.com> wrote in message > news:ll6fi559kj177l5oaqfqvl938c463jp9r7(a)4ax.com... > > I gave it a go, but it does not like me. I allowed session cookies and > > scripts; no soap. > > > > Now what? > > Idunno, your fault for not using mainstream software. > > Back to Google. Vintage Radio isn't the only place. I don't remember if > BAMA has the IO-103. BAMA doesn't have any Heathkit data anymore. The US rights to sell copies was bought from Heathkit and that character demanded that all the scanned schematics & manuals be pulled. BTW, I had no problem downloading from the link you posted. I used Firefox [Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5 (.NET CLR 3.5.30729)] I clicked the link, entered the captcha data and saved the file. -- Offworld checks no longer accepted!
From: Michael A. Terrell on 16 Dec 2009 00:45
Jim Thompson wrote: > > Keep deluding yourself... you're fitting better and better into > Californication ;-) I think the smoke from everything he blows up is affecting his mind. :( -- Offworld checks no longer accepted! |