White substance appeared inside Ice Tube after power-up?
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- Posts: 2
- Joined: Sat Aug 28, 2010 9:52 pm
White substance appeared inside Ice Tube after power-up?
I assembled my first Ice Tube Clock and everything appears to be functioning as desired. Yea! However, after leaving it powered up for the first couple of hours I noticed some white mystery-stuff inside the tube. I double/triple checked voltages as directed in the tutorial and they looked good. Segments operate fine (except the middle-horizontal segments are slightly dimmer than the others). Maybe it's some excess cleaning substance from manufacturing that glazed over once exposed to some heat? It doesn't seem to be actively spreading now that I noticed it. Aesthetically I'm not going to lose any sleep over it but does anyone have any thoughts if it's something I should be concerned about? Hopefully not since I'm itchin' to get on to dimming and time-sync.
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- mitpatterson
- Posts: 196
- Joined: Mon Aug 02, 2010 11:45 pm
Re: White substance appeared inside Ice Tube after power-up?
mine was like that from the get go, so i think its normal, not sure what it is
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- Posts: 12151
- Joined: Thu Apr 06, 2006 4:21 pm
Re: White substance appeared inside Ice Tube after power-up?
http://www.ladyada.net/make/icetube/parts.html
"IV-18 vacuum fluorescent display (VFD) tube
It is normal for the tube to have a black 'spot' on the back and white 'paint' on the back of the display."
"IV-18 vacuum fluorescent display (VFD) tube
It is normal for the tube to have a black 'spot' on the back and white 'paint' on the back of the display."
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- Posts: 2
- Joined: Sat Aug 28, 2010 9:52 pm
Re: White substance appeared inside Ice Tube after power-up?
Got it - thanks. I noticed the black spot was normal from the pictures but must not have paid close enough attention to the white stuff. Onwards!
- stinkbutt
- Posts: 593
- Joined: Wed Feb 17, 2010 2:40 am
Re: White substance appeared inside Ice Tube after power-up?
There is a stupid joke to be made in this post. Something about going blind, or hair growing out of your palms, but I can't seem to pin it down.
Please be positive and constructive with your questions and comments.