research
 Patents
 Books
 Literature
 Articles
 Timeline
 Auction Archive

about
 About this site
 Wanted to buy

bulb gallery

Incandescent:
C
carbon
WD
drawn tungsten
WC
coiled tungsten
WM
mini tungsten
WS
pressed tung.
FG
figural bulbs
XL
christmas
XS
christmas sets
T
tantalum

Discharge:
NE
neon lamps
AR
argon lamps
XE
xenon lamps
MA
mercury
MC
fluorescent
MS
special mercury

Hardware:
F
fuses
FX
fixtures
PF
plugs & fittings
SA
sockets
SW
switches

tube gallery

 X-ray
 Geissler
 Crookes
 Radio
 Box art

museum pics

 Dr. Hugh Hicks
 
Fort Myers, FL.
 S.Slabyhoudek

links

 Related links
 Submit a link

 

Author Topic: Osram Powertronic  (Read 12528 times)

Offline imj

  • New Member!
  • *
  • Posts: 5
  • IMJ
Osram Powertronic
« on: November 08, 2005, 09:50:28 am »
Hi all, I've just joined a few days ago. I have an Osram Powertronic PTU ballast for 70w MH lamps. I used it to run another brand of lamp other than Osram. The buzzing sound from the ballast was slightly different(louder) than when using Osram lamp. I am not sure if this will damage the electronics inside. Stated on the housing it says universal ballast for MH lamps. I have emailed Osram about the compatibility with other brands of lamps but they have not replied. Is there such a thing as a dedicated ballast for a specific brand of lamps?

IMJ

Offline Zelandeth

  • Sr. Member
  • ***
  • Posts: 74
  • Cold Philips SOX 35W
    • Zel's Lair - an assorted grab bag of lighting information, automotive mayhem, and anything else I remember to upload
Re: Osram Powertronic
« Reply #1 on: November 10, 2005, 04:56:33 pm »
It is possible to find ballasts for a specific brand of lamp - but not common.  The most usual area you find that is actually with White SON lamps, particularly Iwasaki ones, which used a bespoke ballast for their lamps, providing it with an extremely carefully controlled waveform.

I don't think this is normally the case with MH lamps though.  It's likely that you'll get the best performance/lifetime out of a lamp which is used with its respective ballast, but generally so long as the ratings and type of lamp are exactly the same, I'd expect it to work.

Ideal check: Go to the manufacturer's website for each lamp, and find the datasheets for them.  If their operating characteristics are the same, you know that they should work right.

Only thing I can think of is if the new lamp's a quartz style MH lamp, as the old was a ceramic type (or vice-versa), I cannot remember, but I believe these may have had slightly different electrical characteristics (Go take a look at Lamptech For more details there to prove or disprove my theory on that count!