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F15 Lead Lag Setup: Updated 
Here's the same fixture in my [url=http://www.galleryoflights.org/mb/gallery/displayimage.php?pos=-3108]previous[/url] pic after I installed a 4uF cap instead of the 2.5uF cap and mounted the two starter sockets and replaced the starters with a pair of metal cased Coopers. I also drilled new holes and mounted the interior components more securely with through bolts.  

Setup details:

I used two GE chokes [url=http://a.imageshack.us/img822/5170/normaldscn5600.jpg] like this one[/url] as the two choke coils, a unbranded F15 choke wired in as a starting compensator in the starter loop for the lead lamp and,  a 2.5uf cap wired in series between the lead ballast and the lead lamp. The only difference aside from the brand of chokes and lamps used was that I used a 2.5uf cap and Daveman used a 3.25uf cap in his original setup so my lead lamp is quite severely underdriven as compared to his setup. That's the first problem I've had from using a lower cap value, the second was that because the lead lamp is underdriven and noticeably dimmer too, it's a lot more difficult to start it (and it won't start T8s) and it also starts off flickering for the first 30 seconds especially from a cold start. I might get a 3.25 or a 3.5uf cap later and try it again to see if the drive current on the lead lamp improves. 

The measurements that I got with a kill a watt type meter from this setup:

Both lamps in:
29W .26A
Lead removed:
18W .29A
Lag Removed:
9W .17A

(Note: I don't know if the meter I used was a true RMS meter so the currents might be off)

Diagram:
[img]http://a.imageshack.us/img717/2153/tulamp.png[/img]
Keywords: Gear

F15 Lead Lag Setup: Updated

Here's the same fixture in my previous pic after I installed a 4uF cap instead of the 2.5uF cap and mounted the two starter sockets and replaced the starters with a pair of metal cased Coopers. I also drilled new holes and mounted the interior components more securely with through bolts.

Setup details:

I used two GE chokes like this one as the two choke coils, a unbranded F15 choke wired in as a starting compensator in the starter loop for the lead lamp and, a 2.5uf cap wired in series between the lead ballast and the lead lamp. The only difference aside from the brand of chokes and lamps used was that I used a 2.5uf cap and Daveman used a 3.25uf cap in his original setup so my lead lamp is quite severely underdriven as compared to his setup. That's the first problem I've had from using a lower cap value, the second was that because the lead lamp is underdriven and noticeably dimmer too, it's a lot more difficult to start it (and it won't start T8s) and it also starts off flickering for the first 30 seconds especially from a cold start. I might get a 3.25 or a 3.5uf cap later and try it again to see if the drive current on the lead lamp improves.

The measurements that I got with a kill a watt type meter from this setup:

Both lamps in:
29W .26A
Lead removed:
18W .29A
Lag Removed:
9W .17A

(Note: I don't know if the meter I used was a true RMS meter so the currents might be off)

Diagram:

100_1954.JPG 100_1919.JPG 100_1886.JPG 100_1882.JPG 100_1879.JPG
File information
Filename:100_1886.JPG
Album name:joe_347V / Lighting Components
Keywords:Gear
Company and Date Manufactured:Original: Visioneering, modified by me
Wattage:2x 15w
Lamp Type:Fluorescent
Filesize:129 KiB
Date added:Sep 04, 2010
Dimensions:1024 x 768 pixels
Displayed:157 times
Color Space:sRGB
Contrast:0
DateTime Original:2010:08:27 00:13:19
Exposure Bias:0 EV
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/60 sec
FNumber:f/2.7
Flash:Flash, Auto-Mode
Focal length:6 mm
ISO:80
Light Source:Unknown: 0
Make:Eastman Kodak Company
Max Aperture:f/2.7
Model:KODAK EASYSHARE C433 ZOOM DIGITAL CAMERA
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=3298
Favorites:Add to Favorites

Comment 1 to 2 of 2
Page: 1

rjluna2   [Sep 04, 2010 at 05:25 PM]
Did you get results from Kill-a-Watt meter?
joe_347V   [Sep 05, 2010 at 05:15 AM]
Kinda, I used a similar meter to the Kill a Watt, the one I used was a UPM EM100 meter.

Comment 1 to 2 of 2
Page: 1