My wife came to me a long time ago with a broken iRobot product. She confused the power plugs -easy to do, they both said iRobot and had the same plugs… One was AC and one was DC. If I recall, I had to replace a diode in the broken iRobot. I used RED and YELLOW tape on the unit and plug from that time on.
Frank KG9H > On Aug 23, 2015, at 10:07 AM, G4GNX <g4...@theatreorgans.co.uk> wrote: > > Whilst much of this may be true, it certainly isn't the case in the > electronics industries (including Ham Radio) no matter how much we would > wish it. > > A classic case is the 2.3mm power input plug (which is really a line socket) > which is used on radios, power tool chargers, cell phones, laptop PCs and > just about every wall wart in existence! When we pull the new appliance out > of its box along with its charger, it's a fair assumption that the charger > will be the correct voltage and it will work and cause no damage. If the > charger dies and we have to source a new one, we expect the manufacturer to > provide the correct device, PROVIDED that we quote the correct model number. > If we go to an alternative supplier, WE are expected to check the voltage > and current requirement and order accordingly. If we don't do that we are > inherently STUPID! Remember in all this, the plug on the end of the wire is > the SAME, it's use is not. We may also find that the polarity has been > reversed on one particular model and what we thought was positive center, is > no longer the case. This IS the case for some commercially built Ham Radio > rigs and for some musical keyboards, to name but two. It is up to US the > USER to check before plugging it in and if we don't we are again STUPID! All > this for one style of connector with only two connections - wow!!! > > I've seen 5 pin DIN plugs used on Ham Radio rigs, I also use EXACTLY the > same plug for MIDI on musical instruments. They are wired differently, the > voltages, currents and signals are different and if I presumed that I could > simply interchange the plugs, I would consider myself very STUPID! > > I would prefer Elecraft to have NOT used the same connector for RS232 and > for AUX, for one reason only. In a moment of stupidity (yes I have them) I > could absent-mindedly plug the wrong connector into one or more orifice. > However, Elecraft obviously did not know that I have these moments of > silliness, so have chosen to not attempt to save me from myself. This leaves > me with three choices: 1) Don't buy the radio. 2) Buy the radio and modify > it to a non-(Elecraft)-standard connector. 3) Buy the radio and RTFM - > thoroughly! > > C'mon guys, if you've bought a kit (even a solderless kit) and you consider > yourself capable of successfully assembling it, doesn't it tend to prove > that you are two things at least - 1) You can read and follow instructions. > 2) You are not the average appliance operator. > > As Radio Hams who have been to "Radio Ham School", I really hope that the > above two qualities truly apply. > > 73, > > Alan. G4GNX > > -----Original Message----- From: Dauer, Edward > Sent: Sunday, August 23, 2015 2:32 PM > To: elecraft@mailman.qth.net > Subject: [Elecraft] If it plugs in, then it should work > > Indeed it should work if it plugs in AND if it looks the same, or at least > it shouldn¹t cause any serious harm. In other industries where safety is > at issue that is a firmly enforced rule. Examples, from two industries > with which I have worked:......................................... > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kg9hfr...@gmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
