Connecting 2 tubes to ballast
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Old 12-10-2003, 06:42 PM   #1
Nordic
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I am trying to connect 2 18watt flourecent tubes to a 40watt magnetic ballast.

Think I have the wiring wrong!!!!!!!!!!

I can get both of the lamps to work when i wire them indiviualy, but not together...

Please help
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15 gal. Dwarf gourami fry tank
10 Gal 3 variatus platies, 4 black sailfin mollies- 5 Gal guppy birth tank with dividers
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1 Gal guppy frytank
40 Gal Pond with 10 female guppies, 1 male tons of fry.

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Old 12-10-2003, 07:31 PM   #2
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I've never even heard of bulbs running in series on a magnetic ballast. Where did you get this idea?
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Old 12-10-2003, 07:36 PM   #3
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Dunno, on the ballast it says it can run 2 x 18watts amongst other things.
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Cape Town, South Africa

25 Gal. 54watt, DIY CO2 5 Angelfish, 1 male dwarf gourami + 2 females ,2 female betas, 3 albino corys, 2 pepper corys, 2 CAEs
15 gal. Dwarf gourami fry tank
10 Gal 3 variatus platies, 4 black sailfin mollies- 5 Gal guppy birth tank with dividers
5 Gal guppy frytank
1 Gal guppy frytank
40 Gal Pond with 10 female guppies, 1 male tons of fry.

On various pieces of furniture, 6 cats!
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Old 12-11-2003, 11:10 AM   #4
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Picture
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Cape Town, South Africa

25 Gal. 54watt, DIY CO2 5 Angelfish, 1 male dwarf gourami + 2 females ,2 female betas, 3 albino corys, 2 pepper corys, 2 CAEs
15 gal. Dwarf gourami fry tank
10 Gal 3 variatus platies, 4 black sailfin mollies- 5 Gal guppy birth tank with dividers
5 Gal guppy frytank
1 Gal guppy frytank
40 Gal Pond with 10 female guppies, 1 male tons of fry.

On various pieces of furniture, 6 cats!
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Old 12-11-2003, 04:31 PM   #5
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Are you sure you have the proper starter in line with each bulb? Sorry, I am not quite as familiar with filament-start magnetic ballasts. Maybe head to the place you bought the ballast and ask them to help you get it working.
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Old 12-11-2003, 05:03 PM   #6
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In the single lamp configuration I tested all the starters I have for duds, they were all fine, and rated for between 5 and 40watt. Strangely once i managed to switch it on without the starter even in.

I have temporarily added another balast to drive a second tube until I can figure this out.
The ballast is very nice, makes no sound, and is half as hot as the other one.
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Cape Town, South Africa

25 Gal. 54watt, DIY CO2 5 Angelfish, 1 male dwarf gourami + 2 females ,2 female betas, 3 albino corys, 2 pepper corys, 2 CAEs
15 gal. Dwarf gourami fry tank
10 Gal 3 variatus platies, 4 black sailfin mollies- 5 Gal guppy birth tank with dividers
5 Gal guppy frytank
1 Gal guppy frytank
40 Gal Pond with 10 female guppies, 1 male tons of fry.

On various pieces of furniture, 6 cats!
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Old 12-11-2003, 06:51 PM   #7
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If a bulb is still fairly warm, it can start without a starter. Some ballasts use the power switch to turn on a bulb by shorting out the filaments while you press the switch. This heats up the gas enough to get it started. But I still don't know why your setup doesn't work.
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Old 12-11-2003, 07:37 PM   #8
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In the diagram does the symbol attched represent a swithch or the little starter thingies...

And what is the symbol with the little crecents (what2.gif)
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Cape Town, South Africa

25 Gal. 54watt, DIY CO2 5 Angelfish, 1 male dwarf gourami + 2 females ,2 female betas, 3 albino corys, 2 pepper corys, 2 CAEs
15 gal. Dwarf gourami fry tank
10 Gal 3 variatus platies, 4 black sailfin mollies- 5 Gal guppy birth tank with dividers
5 Gal guppy frytank
1 Gal guppy frytank
40 Gal Pond with 10 female guppies, 1 male tons of fry.

On various pieces of furniture, 6 cats!
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Old 12-11-2003, 09:13 PM   #9
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the lowest pic is a switch. I'm not sure about the upper pic, it looks like some thread extension or so.
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Old 12-11-2003, 09:15 PM   #10
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then where woud the starter go? I have them there currently in the single lamp config.
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Cape Town, South Africa

25 Gal. 54watt, DIY CO2 5 Angelfish, 1 male dwarf gourami + 2 females ,2 female betas, 3 albino corys, 2 pepper corys, 2 CAEs
15 gal. Dwarf gourami fry tank
10 Gal 3 variatus platies, 4 black sailfin mollies- 5 Gal guppy birth tank with dividers
5 Gal guppy frytank
1 Gal guppy frytank
40 Gal Pond with 10 female guppies, 1 male tons of fry.

On various pieces of furniture, 6 cats!
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Old 12-11-2003, 09:21 PM   #11
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The starter is the C (capacitor) symbol i think...
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Old 12-11-2003, 09:23 PM   #12
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So its not needed in a 2 tube config then?

I used to do electronics as a hobby when I was at school so I am also reading that one symbol as a switch, I just though their had to be a starter, lol. (kind of an interpretation - thinking their diagram is wong at the time)
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Cape Town, South Africa

25 Gal. 54watt, DIY CO2 5 Angelfish, 1 male dwarf gourami + 2 females ,2 female betas, 3 albino corys, 2 pepper corys, 2 CAEs
15 gal. Dwarf gourami fry tank
10 Gal 3 variatus platies, 4 black sailfin mollies- 5 Gal guppy birth tank with dividers
5 Gal guppy frytank
1 Gal guppy frytank
40 Gal Pond with 10 female guppies, 1 male tons of fry.

On various pieces of furniture, 6 cats!
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Old 12-11-2003, 09:27 PM   #13
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probably not, looking at the scheme, ther is a " - " in the micro Fahrad table where there are 2 lamps connected. (218 aand 220)
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Old 12-11-2003, 09:31 PM   #14
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Allthough I'm not exactly looking fwd to undoing all of this again, the current heat leaves me with some safety concerens for the old balast, which i'd rather rremove, driving 2 tubes off this one.

now if only someone could tell us what the curvy symbol is....
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Cape Town, South Africa

25 Gal. 54watt, DIY CO2 5 Angelfish, 1 male dwarf gourami + 2 females ,2 female betas, 3 albino corys, 2 pepper corys, 2 CAEs
15 gal. Dwarf gourami fry tank
10 Gal 3 variatus platies, 4 black sailfin mollies- 5 Gal guppy birth tank with dividers
5 Gal guppy frytank
1 Gal guppy frytank
40 Gal Pond with 10 female guppies, 1 male tons of fry.

On various pieces of furniture, 6 cats!
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Old 12-11-2003, 09:35 PM   #15
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I wish you success and just remember it's on your own risk
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