tube

A test tube, also known as a culture tube or sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing, open at the top and closed at the bottom.
Test tubes are usually placed in special-purpose racks.

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  1. electricman26

    Heating a Copper Tube via Nichrome

    Good afternoon, I wanted to heat up a .5" copper tube that is approximately 15cm long up to about 250 C. I would like to use nichrome to do this, but I know that I will have to use an insulator of some type between the nichrome and the copper tubing. Would JB Weld work? If I lathered the...
  2. G

    Replacing T8 fluorescent tube

    One of the fluorescent tubes in my undermount lighting system burnt out. There are 3 independent tubes/ballasts under the length of the kitchen cabinets and the others were still on. After carefully replacing the affected tube, it seems that all three lamps are now not working. The breaker...
  3. K

    Can you explain to breaker info to me?

    I am buying a house and it was built in 1949. Is there anyway I can tell if it has tube wiring without opening up the walls? Is there anything else I need to watch out for with a home built in 1949? Also can anyone explain these 2 photos to me? Does any of it explain if there is tube wiring?
  4. H

    Replacement Light Tube - LED??

    Hey all, So this is probably a quick question. I have some under-cupboard kitchen light tubes that are old and have clearly blown at some point. Would like to replace them but have two questions: 1. In the attached photo, you can see the product identifiers, but an internet search doesn't bring...
  5. J

    Hired a GC to remodel a 95 year old home that will be rented. Wanted all the knob and tube removed and other areas brought up to code.

    Originally one all the bedrooms had plaster ceilings. In one bedroom someone added firing strips and installed acoustic ceiling tiles on top. The ceiling tiles were removed during renovation and then a licensed electrical contractor ran Romex along the firing strips to the center light and...
    • Jsmsks
    • Thread
    • areas code home old other removed rented screwfix tube wanted
    • Replies: 1
    • Forum: UK Electrical Forum
  6. D

    Replace kitchen tube lights with LED lights

    Hello, I need some advice for a small DIY project to replace about 8 kitchen tube lights under the cabinets with LED lights. Attached are some photos of the existing tube and power connections. Can you recommend a LED lighting product that would be able to use the existing power connections...
  7. T

    Parsons Green underground tube bomb exploded.

    Again we offer condolences and prayers to peoples families who have lost a loved one, Father, Mother, Daughter and on the list goes. I wonder how much more we should sit back and offer condolences. I suppose it will be until there is only me left.
  8. C

    LED Fluorescent Light Fitting - Standard Fluorescent Tube

    OSRAM - 4058075000988 - DAMP PROOF 1500 1X LAMP HOUSING IP65 | CPC UK - http://cpc.farnell.com/osram/4058075000988/damp-proof-1500-1x-lamp-housing/dp/LA0602907?CMP=KNC-CPC-ebooks Says its pre wired for LED lamp. Can anyone tell me if it will take a normal (older type) tube? Thanks
    • chriso89
    • Thread
    • fitting fluorescent housing led light proof something standard tube tubes
    • Replies: 5
    • Forum: DIY Electrical Advice
  9. dedzyyy

    LED Tube Lights

    Hi all, This is a really noobie and arty farty question that I have. I want to make a hanging LED tube light sculpture for my new home, similar to this: Using fluro tubes looks like a major pain in the ---, so I have come across these Christmas lights: Link: 20/30/50cm LED Meteor Shower...
  10. H

    LED tube light, a couple of questions

    Hello everyone! I'm new, so if I make any faux pas, please excuse me. I am working as an architectural intern in Amsterdam at the moment and have been given the task of making some new light fittings for our new office. My boss found some very beautiful lights made by a dutch company called...
    • Henri Lacoste
    • Thread
    • attach company couple housing led led tube light not uk questions tube
    • Replies: 8
    • Forum: UK Electrical Forum
  11. Lit_by_Sparks

    Photometric Files for LED to regular flourescent tube comparison.

    I think that title makes sense. ;) Hi everyone, I'm Mike and I have a question with regards to my battle in trying to enlighten people, about how far LED technology has come on in recent months/years. I have a client that I need to show photometric files to, comparing an 'old school' 5ft flo...
    • Lit_by_Sparks
    • Thread
    • aus information led product regular trying tube
    • Replies: 2
    • Forum: Australia
  12. S

    Fluorescent tube flicker

    Hi folks, I did a few lighting repairs in a cafe for a friend of a friend last week. One of the problems they were having was a flickering Fluorescent tube that wouldn't start in a glass display refrigerator that they keep their cakes in... :D Popped in a new starter and it came on after a...
    • Sparkymark123
    • Thread
    • aus flicker fluorescent tube
    • Replies: 10
    • Forum: Australia
  13. J

    Dimming a 2 foot fluorescent tube

    Fitted two 2 foot fluros for a customer but he now says they are too bright. Are there any cheap ways of successfully dimming them? I read that a dimmer switch will work to about 50%, turn on full power and once its fired up turn it down, has anyone tried this? Thanks Jon
  14. 1

    Flourescent tube lights in Gymnasium

    A friend of mine has asked me to pop over and see why one of his fluorescent units is not working in the changing rooms. The only information I have at the moment is that it's a double strip light unit and he's tried swapping them over with known working replacements and still no light...
    • 1shortcircuit
    • Thread
    • aus lighting lights tube
    • Replies: 15
    • Forum: Australia
  15. S

    How to Crimp uninsulated tube terminals???

    I found this site from a previous thread (which I can't find now, something to do with light switch wiring)... connecting earth wire See the end of the first paragraph...fair enough, but then see how they crimp the lug further down, oh dear! I use my 400mm long hexangonal crimper for those!
    • Silly Sausage
    • Thread
    • aus crimp terminals tube
    • Replies: 6
    • Forum: Australia
  16. K

    dimming fluorescent tube

    Hi All, A friend has just mentioned that when they turn their living room light off (a class 1 fitting with 3x 60w lamps controlled by a 1 gang, 1 way switch switch) the flourescent light in the kitchen goes off for about 5 seconds too then comes back on. Its controlled by a 1 gang, 1way...
    • knasher
    • Thread
    • aus dimming fluorescent tube
    • Replies: 7
    • Forum: Australia
  17. i=p/u

    homebase 58w tube light, base G13

    hello, got a homebase 58w tube light, base G13 light fitting about 3 months ago and its just stoped working, normally i would of thought the starter has went as was probably Cheap, looked and there is no starter on the casing, do you think the bulb would have went by now???? thanks fo any info...
  18. L

    PVC capping and oval tube problems

    Has anybody else had any problems installing PVC oval tube or capping? I did a small kitchen rewire a while ago and used PVC oval tubing, the problem I had was basically the 2.5mm would not fit through it, it just kept getting stuck and I was using the correct size! Then this week I'm doing a...
    • LlandrilloSpark
    • Thread
    • aus capping problems pvc tube
    • Replies: 17
    • Forum: Australia
  19. W

    Pneumatic Tube System (POD System)

    Anyone dealt with fault finding on a Sumetzberger Pneumatic Tube System?
    • whazza22
    • Thread
    • canada system tube
    • Replies: 1
    • Forum: Canada
  20. rustynails

    tube installation problem with diagram

    Hello all, I'm putting in two new tube's into my garage however one of the them was removed a long time ago but now I have replaced it. The garage has two switches, one on the LHS of the internal door and one on the LHS as you walk in to the garage. Both switches should operate both tubes. I've...
    • rustynails
    • Thread
    • aus diagram installation problem tube
    • Replies: 44
    • Forum: Australia

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