4x ODNO two 2-footers using ballast for two 8-footers?
Planted Tank Forums
Your Tanks Image Hosting *Tank Tracker * Plant Profiles Fish Profiles Planted Tank Guide Photo Gallery Articles

Go Back   The Planted Tank Forum > Specific Aspects of a Planted Tank > Lighting


Reply
 
Thread Tools Display Modes
Old 03-25-2004, 06:10 PM   #1
Bob Zink
Newbie
 
PTrader: (0/0%)
Join Date: Mar 2004
Posts: 4
Default

Greetings from a new member. What a great place!

I am especially intrigued by the ODNO concept.
Love the article "ODNO - Lighting for Less."
<http://www.plantedtank.net/odno.html>

I have several old electromagnetic ballasts hanging around -- Don't ask! :?
They are all for 2 eight foot bulbs - F96T12 (single pin, if that makes any difference).

Question:
Can I do the 4x ODNO thing with one of those driving 2 two foot F20T12's? Do I understand the concept correctly?

Also, looking for ideas on where to buy or how to make a good reflector for the two F20T12's side by side. Especially how to make.

Thanks in advance!
Bob Zink is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 03-25-2004, 06:12 PM   #2
GDominy
Planted Tank VIP
 
GDominy's Avatar
 
PTrader: (0/0%)
Join Date: Jul 2002
Location: Victoria,British Columbia, Canada
Posts: 3,363
Default

I don't think you can ODNO with a magnetic ballast.. but I may be wrong.. Sam?
GDominy is offline   Reply With Quote
Old 03-26-2004, 01:42 PM   #3
GulfCoastAquarian
Planted Tank VIP
 
GulfCoastAquarian's Avatar
 
PTrader: (6/100%)
Join Date: Jul 2002
Location: Winston-Salem, NC
Posts: 3,578
Send a message via ICQ to GulfCoastAquarian Send a message via Yahoo to GulfCoastAquarian
Default

You definitely cannot use Magnetic ballasts for ODNO. A magnetic ballast uses an inductor to regulate current flow and is specifically designed for a single application. In order to chage it for use with another bulb, you'd have to re-wind the inductor coil (not something even I would try!).
__________________
- Sam P -
plantedtanker in limbo - all tanks currently in storage
GulfCoastAquarian is offline   Reply With Quote
Old 03-26-2004, 06:37 PM   #4
Bob Zink
Newbie
 
PTrader: (0/0%)
Join Date: Mar 2004
Posts: 4
Default

Thank you GDominy & GulfCoastAquarian!

After reading more on the subject at this site, that's what I was afraid of.

Just got home from our local Home Depot with all the recommended ingredients for a 4x OD of two F20T12/D.

:idea: I'm planning to use a 2 foot length of 3 inch diam galvanized duct (<$4) for a DIY reflector. Leaving the seam open, I think it will be easy to break a reverse bend in it halfway around the perimeter, thereby ending up with a double half-round channel. The mill finish is pretty shiny, but I might try lining with AL foil.

Any tips or better ideas are welcome!
Thanks again.
__________________
Bob
Bob Zink is offline   Reply With Quote
Old 03-27-2004, 06:10 AM   #5
ninoboy
Wannabe Guru
 
ninoboy's Avatar
 
PTrader: (0/0%)
Join Date: Jan 2004
Location: Las Vegas , Nevada
Posts: 1,261
Default

Hi Bob, I read an article before regarding reflector materials. Aluminium foil is kind of bad. White paint even rank higher than it. The reason is that almost impossible to line al. foil smoothly. Even if you could, it perform closely with white paint.

I tried it before anyway and endup buying one.

IF you got nothing to do, you can search the web on different reflector materials.

Good luck
ninoboy is offline   Reply With Quote
Old 04-02-2004, 12:58 PM   #6
Bob Zink
Newbie
 
PTrader: (0/0%)
Join Date: Mar 2004
Posts: 4
Default

Quote:
Aluminium foil is kind of bad. White paint even rank higher than it. The reason is that almost impossible to line al. foil smoothly. Even if you could, it perform closely with white paint.
Thanks, ninoboy!

I ended up using the shiny galvanized material I mentioned in the classic "golden arch" design above the 2 F20T12's and painting the lower parts of the box white.

The 4XODNO wiring worked out well, I've had it in use for a week now.
Thanks again to you, Gareth & Sam for the tips.

Now... er, which board would be best to post questions about reducing algae? :roll:
__________________
Bob
Bob Zink is offline   Reply With Quote
Old 04-02-2004, 01:38 PM   #7
ninoboy
Wannabe Guru
 
ninoboy's Avatar
 
PTrader: (0/0%)
Join Date: Jan 2004
Location: Las Vegas , Nevada
Posts: 1,261
Default

Algae section
ninoboy is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
my adventures with odno Oqsy Lighting 20 07-06-2005 01:56 AM
ODNO SOS--Sam, Anyone--HELP! John P. Lighting 12 08-26-2004 02:53 PM
Ballast question Ptahkeem Lighting 4 02-18-2004 10:20 PM
ODNO wiring... Rolo DIY 15 02-02-2004 01:11 PM


All times are GMT. The time now is 12:07 PM.


Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright Planted Tank LLC 2012