Yes I bet that most of us amateur radio people have cooked at least one cig lighter receptacle, usually with a high power radio. I did one about a year ago. Forgot to move it over to a Anderson power pole I had installed and smoked the receptacle.
Sine wave good, square wave bad, way bad... Modified sine wave is still a square wave, it just puts the transition off in time, but it is still ugly. On Tue, Aug 22, 2017 at 10:24 AM, David <w7...@comcast.net> wrote: > Be careful drawing that much power out of a cigarette lighter. The > connection will get hotter than a pistol! It is not meant to handle that > much current for more than a minute or so at time. 3 or 4 amps is a good > long term maximum, which is still 40 or 50 watts. Been there ... done > that. -Dave. > > > On 8/22/2017 12:25 AM, Tom wrote: > > I solved this kind of portability, and more, by purchasing an inverter. > > I find that way more universal than trying to get stuff working on > > battery power with unstable voltage. True 110V socket in the car is > > awesome for road and marine trips. The size of the inverter is about > > 15x20x5cm. > > If you chose to go this route, I would advice to get true sine wave > > inverter. It costs 2-3x more but it works way better than the square > > and/or modified sine wave inverters. They (not the true sine wave one) > > caused my power bricks + the inverter to overheat and it was bloody > > noisy. You can draw max 15A out of lighter socket in the car so 120 > > -150W inverter is all you can feed without wiring it directly to the > > battery. I got it in Frys' after returning the cheaper modified sine > > wave one. > > Hope it helps, Tomas > > On Sun, 2017-08-20 at 23:08 -0700, Michael Barnes wrote: > >> Good to know. What would be really great is to find a similar printer > >> that > >> would run from 12VDC. I'd like to set up a completely portable fly > >> -away > >> package that ran from 12VDC to utilize battery/vehicle/solar power. > >> > >> Michael > >> > >> > >> On Sun, Aug 20, 2017 at 7:35 PM, Dave <w7...@comcast.net> wrote: > >> > >>> http://lists.pdxlinux.org/pipermail/plug/2017-August/087027.html > >>> > >>> Here's a follow-up report: > >>> > >>> /I ordered an HP Deskjet 1112 from Amazon for this application. It > >>> claims > >>> // > >>> //to have full support for Linux Debian (RPi?) and Mint via USB. > >>> For $29 > >>> it's // > >>> //worth a try. If it works, it should be a perfect small addition > >>> to a // > >>> //stand-alone RPi student learning station.// > >>> / > >>> ------------------------------------------------------------------- > >>> ----- > >>> > >>> Received the HP Deskjet 1112 and installed it first in Windows 7 to > >>> make > >>> sure it worked. Then installed it to a Raspberry Pi 3B. > >>> > >>> The software installation went mostly smoothly, carefully following > >>> the > >>> detailed instructions and accepting the defaults found at: > >>> > >>> http://hplipopensource.com/hplip-web/install/install/index.html > >>> > >>> They are close enough. (You do NOT have to worry about editing some > >>> ??? > >>> file mentioned. It's not on the RPi.) > >>> > >>> The only glitch was the install requires a root/superuser password. > >>> If I > >>> had one it apparently didn't like it so I added *sudo passwd root* > >>> and > >>> made "*root*" the password. That worked. In the future I'll do up > >>> front > >>> before beginning the software install to get it out of the way. > >>> > >>> I'm quite pleased with the results. For the price, it is a lot of > >>> printer; quick, and excellent quality. But the HP software isn't > >>> perfect. I can't get it to print the last page first despite a tab > >>> to > >>> that effect, and it doesn't print footers despite showing them on > >>> the > >>> screen. Since the printed text appears to be a little larger than > >>> it > >>> should that probably explains the missing footers. I may be doing > >>> something wrong, but again, for $29, and having an easy RPi3 > >>> Install, > >>> this ain't bad. > >>> > >>> Will also be installing the 1112 to a Linux MINT machine just to > >>> wring > >>> it out some more and see what happens. Hope this helps someone. > >>> > >>> > >>> _______________________________________________ > >>> PLUG mailing list > >>> PLUG@lists.pdxlinux.org > >>> http://lists.pdxlinux.org/mailman/listinfo/plug > >>> > >> _______________________________________________ > >> PLUG mailing list > >> PLUG@lists.pdxlinux.org > >> http://lists.pdxlinux.org/mailman/listinfo/plug > > _______________________________________________ > > PLUG mailing list > > PLUG@lists.pdxlinux.org > > http://lists.pdxlinux.org/mailman/listinfo/plug > > _______________________________________________ > PLUG mailing list > PLUG@lists.pdxlinux.org > http://lists.pdxlinux.org/mailman/listinfo/plug > -- Chuck Hast -- KP4DJT -- I can do all things through Christ which strengtheneth me. Ph 4:13 KJV Todo lo puedo en Cristo que me fortalece. Fil 4:13 RVR1960 _______________________________________________ PLUG mailing list PLUG@lists.pdxlinux.org http://lists.pdxlinux.org/mailman/listinfo/plug
