Re: [Elecraft] KX3 Remove plastic film on display?
A little web search turns up interesting information, e.g. from Wikipedia: "In 1953, Russian scientists showed that triboluminescence caused by peeling a roll of an unidentified Scotch brand tape in a vacuum can produce X-rays. In 2008, American scientists performed an experiment that showed the rays can be strong enough to leave an X-ray image of a finger on photographic paper." But none of that relates to the fact that it takes only a weak static charge to trigger the LCD, and that is easily generated on the LCD cover glass by simply separating the plastic from the glass, even without adhesive. OTOH, the reason why the film has been taken off at the factory is that some builders did manage to damage the LCD, even pulling the glass off while trying to remove tape that was laid down so well that it was very difficult to see the edge. 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Stephen Prior Sent: Tuesday, July 10, 2012 1:02 AM To: Kevin Luxford Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] KX3 Remove plastic film on display? I believe it may well be UV which is produced, certainly visible light is. I agree that the energy is too small for the production of x rays, after all you need to accelerate electrons through 10kV or so to produce x rays. UV radiation exists across a wide energy range compared with visible light. Stephen F/G4SJP __ 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
Re: [Elecraft] KX3 Remove plastic film on display?
It's always a good idea to handle boards by their edges insofar as possbile, even while wearing static protection, just to avoid unnecessary mechanical stress on components. Sounds like a good idea to add that to the manuals as a general instruction. Thanks Ed. 73, Ron AC7AC -Original Message- peeled mine off with no issues! "...except all the liquid in the LCD leaked all over!" (joke) I figured it was standard to protect the LCD screen. Certainly avoided a bunch of finger prints that way. 73, Ed - KL7UW, WD2XSH/45 __ 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
Re: [Elecraft] KX3 Remove plastic film on display?
peeled mine off with no issues! "...except all the liquid in the LCD leaked all over!" (joke) I figured it was standard to protect the LCD screen. Certainly avoided a bunch of finger prints that way. 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 50-1.1kw?, 144-1.4kw, 432-QRT, 1296-?, 3400-? DUBUS Magazine USA Rep dubus...@gmail.com "Kits made by KL7UW" http://www.kl7uw.com/kits.htm == __ 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
Re: [Elecraft] KX3 Remove plastic film on display?
I believe it may well be UV which is produced, certainly visible light is. I agree that the energy is too small for the production of x rays, after all you need to accelerate electrons through 10kV or so to produce x rays. UV radiation exists across a wide energy range compared with visible light. Stephen F/G4SJP KX3 in the Vaucluse (where it's a little warm for an Englishman!) On Tuesday, 10 July 2012, Kevin Luxford wrote: > Thanks to all who responded to my post. I will now gently remove the > film. It was reassuring to learn that some LCDs were shipped with the > film still in place. > > As for the generation of x-rays, I doubt that there would be sufficient > energy in the removal to do that. Might be a job for the Mythbusters. > > Again, thanks to all. > > 73 > Kevin > VK3DAP / ZL2DAP > > On 10/07/2012 9:06 AM, Ron D'Eau Claire wrote: > > Yes, along with visible flashes of light if you're in darkness and your > eyes > > have had time to adapt. > > > > As film photographer old enough to have used sheet-cut film, I learned to > > never use that tape on the back of undeveloped negative films. > > > > Ron AC7AC > > > > -Original Message- > > > > I read once that pulling Scotch tape off a roll in a dispenser fairly > > rapidly will generate x-rays. I have no idea if that one is true. > > > > 73, > > > > Fred K6DGW > > > > > > __ > 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 > -- Sent from Gmail Mobile __ 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
Re: [Elecraft] KX3 Remove plastic film on display?
Thanks to all who responded to my post. I will now gently remove the film. It was reassuring to learn that some LCDs were shipped with the film still in place. As for the generation of x-rays, I doubt that there would be sufficient energy in the removal to do that. Might be a job for the Mythbusters. Again, thanks to all. 73 Kevin VK3DAP / ZL2DAP On 10/07/2012 9:06 AM, Ron D'Eau Claire wrote: > Yes, along with visible flashes of light if you're in darkness and your eyes > have had time to adapt. > > As film photographer old enough to have used sheet-cut film, I learned to > never use that tape on the back of undeveloped negative films. > > Ron AC7AC > > -Original Message- > > I read once that pulling Scotch tape off a roll in a dispenser fairly > rapidly will generate x-rays. I have no idea if that one is true. > > 73, > > Fred K6DGW > > __ 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
Re: [Elecraft] KX3 Remove plastic film on display?
Yes, along with visible flashes of light if you're in darkness and your eyes have had time to adapt. As film photographer old enough to have used sheet-cut film, I learned to never use that tape on the back of undeveloped negative films. Ron AC7AC -Original Message- I read once that pulling Scotch tape off a roll in a dispenser fairly rapidly will generate x-rays. I have no idea if that one is true. 73, Fred K6DGW __ 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
Re: [Elecraft] KX3 Remove plastic film on display?
The kit version only. The film does not offer any significant protection beyond avoiding fingerprints. And it doesn't even do that very well since it doesn't always cover the full face of the display. It is not always easy to see and remove. 73, Ron AC7AC From: Thomas Horsten [mailto:tho...@horsten.com] Sent: Monday, July 09, 2012 3:18 PM To: Ron D'Eau Claire Cc: Kevin Luxford; Elecraft Subject: Re: [Elecraft] KX3 Remove plastic film on display? Does this apply to the kit version? I'd have thought it was in place to protect the LCD in transit and during handling while assembling (until it's installed and the bezel takes over that protective role). In the factory built version it'd be very fiddly to remove it, but in the kit it's easy enough to remove although due care should be taken and a note to that effect in the assembly manual might be helpful. 73, Thomas __ 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
Re: [Elecraft] KX3 Remove plastic film on display?
On 7/9/2012 2:05 PM, Thomas Horsten wrote: > Kevin, > > I thought "that's got to be something I peel off" and then as I started and > all the segments blurred out in black as I peeled it off I thought "damn, > that was wrong, bye bye LCD". Luckily I was wrong :) Removing protective films and tapes from some plastics seems to often generate a fairly hefty static charge. That might be what affected your LCD ... temporarily. I had the same question when I built my K2. Somehow, the film had managed to sneak by the Elecraft Kit QC. I read once that pulling Scotch tape off a roll in a dispenser fairly rapidly will generate x-rays. I have no idea if that one is true. 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org __ 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
Re: [Elecraft] KX3 Remove plastic film on display?
Does this apply to the kit version? I'd have thought it was in place to protect the LCD in transit and during handling while assembling (until it's installed and the bezel takes over that protective role). In the factory built version it'd be very fiddly to remove it, but in the kit it's easy enough to remove although due care should be taken and a note to that effect in the assembly manual might be helpful. 73, Thomas On 9 July 2012 23:00, Ron D'Eau Claire wrote: > The film is supposed to have removed at the factory for just that reason. > Also, sometimes it is so well placed it's not obvious and people have > ruined > the display by damaging the cover glass trying to peel up an edge. > > That's why the K3 LCD display comes without the film. > > Apparently some got shipped with the film in place by accident. > > 73 Ron AC7AC > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Thomas Horsten > Sent: Monday, July 09, 2012 2:05 PM > To: Kevin Luxford > Cc: Elecraft > Subject: Re: [Elecraft] KX3 Remove plastic film on display? > > Kevin, > > I thought "that's got to be something I peel off" and then as I started and > all the segments blurred out in black as I peeled it off I thought "damn, > that was wrong, bye bye LCD". Luckily I was wrong :) > > A note in the assembly guide might provide reassurance. > > 73, Thomas M0TRN > > On 9 July 2012 16:14, Kevin Luxford wrote: > > > Hi guys, > > > > I have started the assembly of KX3 0570. I have mounted the display > > board in the front cover. The next step is the assembly of the bezel. > > My question is, should the plastic film covering the display be gently > > peeled off? Mine has some air bubbles underneath it, which suggests > > that perhaps it should be removed. However, I do not want to repeat > > the costly mistake I made when assembling my K2! > > > > Thanks in advance. > > > > 73 > > Kevin > > VK3DAP / ZL2DAP > > __ > > 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 > > > __ > 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 > > __ 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
Re: [Elecraft] KX3 Remove plastic film on display?
The film is supposed to have removed at the factory for just that reason. Also, sometimes it is so well placed it's not obvious and people have ruined the display by damaging the cover glass trying to peel up an edge. That's why the K3 LCD display comes without the film. Apparently some got shipped with the film in place by accident. 73 Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Thomas Horsten Sent: Monday, July 09, 2012 2:05 PM To: Kevin Luxford Cc: Elecraft Subject: Re: [Elecraft] KX3 Remove plastic film on display? Kevin, I thought "that's got to be something I peel off" and then as I started and all the segments blurred out in black as I peeled it off I thought "damn, that was wrong, bye bye LCD". Luckily I was wrong :) A note in the assembly guide might provide reassurance. 73, Thomas M0TRN On 9 July 2012 16:14, Kevin Luxford wrote: > Hi guys, > > I have started the assembly of KX3 0570. I have mounted the display > board in the front cover. The next step is the assembly of the bezel. > My question is, should the plastic film covering the display be gently > peeled off? Mine has some air bubbles underneath it, which suggests > that perhaps it should be removed. However, I do not want to repeat > the costly mistake I made when assembling my K2! > > Thanks in advance. > > 73 > Kevin > VK3DAP / ZL2DAP > __ > 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 > __ 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 __ 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
Re: [Elecraft] KX3 Remove plastic film on display?
Kevin, I thought "that's got to be something I peel off" and then as I started and all the segments blurred out in black as I peeled it off I thought "damn, that was wrong, bye bye LCD". Luckily I was wrong :) A note in the assembly guide might provide reassurance. 73, Thomas M0TRN On 9 July 2012 16:14, Kevin Luxford wrote: > Hi guys, > > I have started the assembly of KX3 0570. I have mounted the display > board in the front cover. The next step is the assembly of the bezel. > My question is, should the plastic film covering the display be gently > peeled off? Mine has some air bubbles underneath it, which suggests > that perhaps it should be removed. However, I do not want to repeat the > costly mistake I made when assembling my K2! > > Thanks in advance. > > 73 > Kevin > VK3DAP / ZL2DAP > __ > 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 > __ 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
Re: [Elecraft] KX3 Remove plastic film on display?
Yes, it should be removed. It will peel off very easily once you pick up an edge. Apparently SOME KX3's were shipped with this film still left on the display by accident. 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Kevin Luxford Sent: Monday, July 09, 2012 8:14 AM To: Elecraft Subject: [Elecraft] KX3 Remove plastic film on display? Hi guys, I have started the assembly of KX3 0570. I have mounted the display board in the front cover. The next step is the assembly of the bezel. My question is, should the plastic film covering the display be gently peeled off? Mine has some air bubbles underneath it, which suggests that perhaps it should be removed. However, I do not want to repeat the costly mistake I made when assembling my K2! Thanks in advance. 73 Kevin VK3DAP / ZL2DAP __ 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 __ 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
[Elecraft] KX3 Remove plastic film on display?
Hi guys, I have started the assembly of KX3 0570. I have mounted the display board in the front cover. The next step is the assembly of the bezel. My question is, should the plastic film covering the display be gently peeled off? Mine has some air bubbles underneath it, which suggests that perhaps it should be removed. However, I do not want to repeat the costly mistake I made when assembling my K2! Thanks in advance. 73 Kevin VK3DAP / ZL2DAP __ 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
