voltage divider calcs
in [Design]
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From: John Larkin on 24 Apr 2010 12:43 On Sat, 24 Apr 2010 15:12:19 GMT, Jan Panteltje <pNaonStpealmtje(a)yahoo.com> wrote: >On a sunny day (Sat, 24 Apr 2010 05:23:16 +0200) it happened Sjouke Burry ><burrynulnulfour(a)ppllaanneett.nnll> wrote in ><4bd26424$0$14132$703f8584(a)textnews.kpn.nl>:am still using WIN3.11 for workgroups, have not needed any >>bugs fixed by M$. >>You dont need a new or refurbished OS or computer every 2 years. > >Exactly >Still running a 10 year old Duron 950 Mhz as server, and Linux of course. >All backuped 2 x. >When all applications run, there is no reason in the world to upgrade OS. > >To be honest, nothing really new, a killer application one *must* have, >has happend in the last 10 years.... Google Earth. John
From: Nico Coesel on 24 Apr 2010 13:04 mikkosyrjalahti(a)Mikko-Syrjalahtis-MacBook.local (Mikko =?iso-8859-1?Q?Syrj=C3=A4lahti?=) wrote: >John Larkin <jjlarkin(a)highNOTlandTHIStechnologyPART.com> writes: > >> It's easier to use LT Spice to do a simple resistor string voltage >> divider analysis than to use a calculator! Much easier if you want to >> futz with values to hit some targets. > >I've been thinking of buying cheap coding to do javascript-based calculator >for this. If anybody here would like to comment on most wanted features, I'll >get it coded on rentacoder.com and will share the SW under BSD license. There is more to calculate then resistor dividers. I have a Casio fx-115MS calculator which allows the user to edit the equation. In most cases one of the component values is known so it takes only a few attempts to determine matching E12 or E24 values. -- Failure does not prove something is impossible, failure simply indicates you are not using the right tools... nico(a)nctdevpuntnl (punt=.) --------------------------------------------------------------
From: Jan Panteltje on 24 Apr 2010 13:10 On a sunny day (Sat, 24 Apr 2010 09:43:00 -0700) it happened John Larkin <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote in <mr76t5l9uk1vudqd40i7gm75gj7s5vll37(a)4ax.com>: >On Sat, 24 Apr 2010 15:12:19 GMT, Jan Panteltje ><pNaonStpealmtje(a)yahoo.com> wrote: > >>On a sunny day (Sat, 24 Apr 2010 05:23:16 +0200) it happened Sjouke Burry >><burrynulnulfour(a)ppllaanneett.nnll> wrote in >><4bd26424$0$14132$703f8584(a)textnews.kpn.nl>:am still using WIN3.11 for workgroups, have not needed any >>>bugs fixed by M$. >>>You dont need a new or refurbished OS or computer every 2 years. >> >>Exactly >>Still running a 10 year old Duron 950 Mhz as server, and Linux of course. >>All backuped 2 x. >>When all applications run, there is no reason in the world to upgrade OS. >> >>To be honest, nothing really new, a killer application one *must* have, >>has happend in the last 10 years.... > >Google Earth. > >John Yes, but that runs fine on my Duron 950, in Linux. Not something you need new hardware for. Google maps exists too, in the browser... I did route planning with it once, got stuck and had to go visual -:) Netherlands is so small it is hard to get lost. One hour east to west, 2 hours north to south. OK, these days at that speed you would get a ticket.
From: krw on 24 Apr 2010 13:12 On Sat, 24 Apr 2010 09:43:00 -0700, John Larkin <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >On Sat, 24 Apr 2010 15:12:19 GMT, Jan Panteltje ><pNaonStpealmtje(a)yahoo.com> wrote: > >>On a sunny day (Sat, 24 Apr 2010 05:23:16 +0200) it happened Sjouke Burry >><burrynulnulfour(a)ppllaanneett.nnll> wrote in >><4bd26424$0$14132$703f8584(a)textnews.kpn.nl>:am still using WIN3.11 for workgroups, have not needed any >>>bugs fixed by M$. >>>You dont need a new or refurbished OS or computer every 2 years. >> >>Exactly >>Still running a 10 year old Duron 950 Mhz as server, and Linux of course. >>All backuped 2 x. >>When all applications run, there is no reason in the world to upgrade OS. >> >>To be honest, nothing really new, a killer application one *must* have, >>has happend in the last 10 years.... > >Google Earth. FPGA tools that actually work.
From: JosephKK on 24 Apr 2010 13:16
On Thu, 22 Apr 2010 16:29:07 -0700, Jim Thompson <To-Email-Use-The-Envelope-Icon(a)On-My-Web-Site.com> wrote: >On Thu, 22 Apr 2010 19:23:17 -0400, "Michael A. Terrell" ><mike.terrell(a)earthlink.net> wrote: > >> >>Jim Thompson wrote: >>> >>> On Thu, 22 Apr 2010 09:56:26 -0700, John Larkin >>> <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >>> >>> [snip] >>> > >>> >Stupid Windows won't allow me to hide the ugly icon. Or to change the >>> >icon to something more appropriate. Microsoft writes garbage. >>> > >>> [snip] >>> >>> Is that Windows 7 ?? >>> >>> I certainly can hide it with Windows XP. >> >> >> I wonder if '7' is the IQ of the ad agency that's doing the new >>commercials? > >I'm getting concerned with all the horror stories I'm hearing about >Windows 7. Do tell. I knew Vista was a horror before it even came out, and could hardly get shut of the negative buzz. But i haven't heard much bad about Win7. Maybe there is a defect in my sources. > >My PC collection is getting aged (except for the laptop), so >replacement is in the air :-( > > ...Jim Thompson |