I'd guess 175 or 100 watts because the head looks too small to hold a 250w ballast considering things were bulkier then. Unless this is remote ballasted.
Joe M. would know....He has some of those in his collection , he worked in the area plus he lives in the same area.
And sometimes there's a wattage tag on the wooden pole....though it depends on the electrical company....
Also Streetlights98....you'll be surprised on ballast size....Those Boston Wheelers I saw a few catalogs of them, there were those kits where you actually install a ballast in an incandescent NEMA fixtures!
Actually, when Joe Maurath Jr. was helping me with information on my OV10 he said he owns this exact one, 175w MV, 240v. It had a GE Deluxe from 1985 in it and everthing works perfectly.
Well...there you go! Joe has been known to save fixtures in the area. The company of this area knows him well too!
I donno why Tpirman1982 (David F.) assumes it's a 120 volts...or how he knows....There are a lot of setups that are 240, some are even 277 and then there is those that are 480 volts! I would probably have easier time knowing how it is setup if he took pictures of the arm and the pole and wiring then it would make things easier....but he only takes pics of fixtures themselves....
I know blue is multi tap cuz I own three. My OV10 had a gray PC and is M-tap. Anyways, i got his permision to post his email:
" Saw your photos of your OV-10 on GoL. Look great!
BTW I own that acorn Boston Wheeler that you recently commented on. National Grid took it down in late 07. I've got it all original as you saw it in the photo, pipe arm, photocontrol and all (undisturbed, too). It is a 175W mercury. Lamp is a GE deluxe white from 1985 and everything still works. These employed a simple 240V reactor ballast like alot of former Mass. Electric Co. territory lights.
Anyway...It came from Holbrook, MA. I work for a local utility and was able to purchase numerous NICE examples of the mercury vapor lights in that town as they were converted to HPS from December 2010 to early March of this year. They were the last of the streetlighting MV's here in southeast MA. I was with the contractor during much of this job. Sad to see them gone but at least the best ones (including the four Fm400 PowrPacks) are now in my collection.
Feel free to forward any of this info anyone else interested.
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And sometimes there's a wattage tag on the wooden pole....though it depends on the electrical company....
Also Streetlights98....you'll be surprised on ballast size....Those Boston Wheelers I saw a few catalogs of them, there were those kits where you actually install a ballast in an incandescent NEMA fixtures!
I donno why Tpirman1982 (David F.) assumes it's a 120 volts...or how he knows....There are a lot of setups that are 240, some are even 277 and then there is those that are 480 volts! I would probably have easier time knowing how it is setup if he took pictures of the arm and the pole and wiring then it would make things easier....but he only takes pics of fixtures themselves....
" Saw your photos of your OV-10 on GoL. Look great!
BTW I own that acorn Boston Wheeler that you recently commented on. National Grid took it down in late 07. I've got it all original as you saw it in the photo, pipe arm, photocontrol and all (undisturbed, too). It is a 175W mercury. Lamp is a GE deluxe white from 1985 and everything still works. These employed a simple 240V reactor ballast like alot of former Mass. Electric Co. territory lights.
Anyway...It came from Holbrook, MA. I work for a local utility and was able to purchase numerous NICE examples of the mercury vapor lights in that town as they were converted to HPS from December 2010 to early March of this year. They were the last of the streetlighting MV's here in southeast MA. I was with the contractor during much of this job. Sad to see them gone but at least the best ones (including the four Fm400 PowrPacks) are now in my collection.
Feel free to forward any of this info anyone else interested.
Sincerely,
Joe Maurath, Jr.
++++++++++++++++++++++++++++++++++ "