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F30T12 running on incandescent ballast on 120V

F30T12 running on incandescent ballast on 120V

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Since building my mercury vapor drum light, I had a spare light socket lying around, so I decided to have some fun lighting various fluorescent lamps with incandescent bulbs.

The final test was with my 1980 Sylvania F30T12/CW. I'm surprised this worked. I guess it's hard enough to get one of these to strike on a choke ballast on 120V, let alone an incandescent ballast that can't provide an inductive kick. But it worked - I got the lamp to strike by laying my arm along the length of it while manually preheating it. And it stayed running. I used a 100W incandescent bulb, so lamp power was around 35 watts. Total running power was over 80 watts! I also got it to strike using a 60W bulb, which fed the lamp 23 watts. That was even more difficult to strike since the cathodes barely glowed during preheating. But again, it stayed running for several minutes before I cut it off.

Oh, the incandescent bulb in question is one of my 1998 GE Crystal Clear bulbs. :)

IMG_0639~0.JPG IMG_0610.JPG IMG_0549.JPG IMG_0237.JPG

Light Information

Light Information

Lamp
Lamp Type:F30T12
Fixture
Ballast Type:100W Incandescent bulb
Electrical
Voltage:120V

File information

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Filename:IMG_0549.JPG
Album name:themaritimegirl / Experiments, Projects, & Mods
Keywords:Miscellaneous
File Size:107 KB
Date added:Jan 07, 2014
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rjluna2
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Robert


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Jan 08, 2014 at 09:21 AM Author: rjluna2
Congraulate with your 120 Volt incandescent light ballast experiment

Were you able to try the 75 Watts incandescent light bulb as the ballast yet?

Pretty, please no more Chinese failure.

themaritimegirl
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themaritimegirl themaritimegirl themaritimegirl
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Jan 08, 2014 at 09:23 AM Author: themaritimegirl
Yes, I did try a 75 watt. Lamp wattage was around 28 watts if I remember correctly.

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rjluna2
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Jan 08, 2014 at 09:28 AM Author: rjluna2
Thanks

Pretty, please no more Chinese failure.

ace100w120v
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Mar 22, 2014 at 10:41 PM Author: ace100w120v
I did this once with an FS-2 starter, a GE F30T12/CW/RS, and two 100w incandescents. It was tricky to get to light!
themaritimegirl
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themaritimegirl themaritimegirl themaritimegirl
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Mar 22, 2014 at 10:46 PM Author: themaritimegirl
Two 100 watt bulbs? In series or in parallel? One would have significantly underdriven the lamp, and the other would have severely overdriven it...!

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ace100w120v
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Mar 27, 2014 at 10:35 PM Author: ace100w120v
It was blackened afterward, likely from the cathodes being overdriven while preheating...they were in a Y-adpater so therefore in paralell.
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themaritimegirl themaritimegirl themaritimegirl
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Mar 27, 2014 at 10:40 PM Author: themaritimegirl
Holy crap! The lamp would've been doing close to 100 watts!

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