2 foot 36w T8 Tubes??

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Tom
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2 foot 36w T8 Tubes??

Postby Tom » Sun Apr 17, 2011 6:48 pm

All this recent discussion about 2' 40w tubes and gear that has stemmed off that beast of a ballast that Kev posted has reminded me of once seeing a 2' 36w T8 tube listed on a pack of Philips S2 starters amongst the other compatible tube ratings. I for one have never heard of, or seen such a tube but if one does exist, a tri 840 example would be one seriously bright 2' tube! 8-)

Has anyone else heard of or seen one? (or own one for that matter!)
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Re: 2 foot 36w T8 Tubes??

Postby sailormoon01uk » Sun Apr 17, 2011 7:15 pm

The S2 will operate the 2 ft 40w Fluorescent Tube (Two in series on a 5ft 80w Ballast), however they are T12's, of all the years I have been Working with / Collecting Lamps and Lights I have never heard of a 2ft 36w T8 Fluorescent Tube. and none are listed in any of my Catalogues some date back to the 1940's

All the Best

Colin

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Re: 2 foot 36w T8 Tubes??

Postby Kev » Sun Apr 17, 2011 11:04 pm

Nop not one i have heard of either would be cool though! So you can use a 5' 80W Ballast to run 2x40W 2'? Interesting! U can use S2 starters to do this? Would a mercury vapour ballast or a 65W Fluorescent ballast do the same?

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Re: 2 foot 36w T8 Tubes??

Postby sailormoon01uk » Mon Apr 18, 2011 7:08 am

Yep a 2ft 40w Fluorescent Tube runs at 46 volts 0.8 amps so connecting two in seires will be raising the tubes Voltage to 92 volts and wattage to 80 watts, but the Tubes current remains the same at 0.8 amps, a 5ft 80w Tube runs at 100 volts 0.8 amps, thus the Series Tube circuit using 2 x 2ft 40w Tubes is the same as the single 5ft 80w Tube, the S2 Starters are designed for striking a single tube on a 110 120 volt ballast or two Tubes in series on a 220/240 volt supply, the only reason why they don't list 2ft 40w is noone uses them anymore, but early starters from the 1970s and older, did list the, S2, 155-200, and so on when 2ft 40w Tubes were used in office and Street lighting etc

Yes a 5ft 65 w Ballast will work as I have a Road Sign light using 2 x 2ft 40w Tubes in series, and yep the starters are Philips S2's

Re a Mercury Ballast Yes you can do this but the tubes will be running at 19 volts higher than normal, which should be OK

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Dez
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Re: 2 foot 36w T8 Tubes??

Postby Dez » Thu Apr 21, 2011 7:58 pm

I have seen some 2FT 36W T8 tubes for a sunbed on a website

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Re: 2 foot 36w T8 Tubes??

Postby sailormoon01uk » Thu Apr 21, 2011 8:47 pm

Yes there are 2ft 40w T8 Actinic Fluorescent Tubes for use with Insect traps are available from TLC Electrical see HERE,

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Re: 2 foot 36w T8 Tubes??

Postby Dez » Sun May 29, 2011 9:42 am


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sailormoon01uk
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Re: 2 foot 36w T8 Tubes??

Postby sailormoon01uk » Sun May 29, 2011 10:26 am

I see they are Twice the Price than TLC

All the Best

Colin

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Dez
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Re: 2 foot 36w T8 Tubes??

Postby Dez » Thu Jun 23, 2011 9:09 pm

look here http://www.lighting-gallery.net/gallery ... &pid=48818 its a normol 36W T8 2ft tube :shock: :shock: :shock:

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Re: 2 foot 36w T8 Tubes??

Postby Kev » Thu Jun 23, 2011 9:19 pm

One thing i mean to keep checking in my Philips bible from 2000 is if 2' 40w T12 was ever made in 840? That would be one BRIGHT 2' tube


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