I was thinking of buying a digital camera for some streetlight shots, but I've never owned such a camera. Any advice on what would work best for this...
well I would love ideas that will keep old streetlights since I like old streetlights like Westinghouse OV-15 and Tudors and other 1960s streetlights here's...
I have great experince with Canon and Sony brands.....I have a Sony and my parents has a Canon and they are great digital cameras with long battery life...I...
... Fisher Pierce has done this for years... http://www.fisherpierceolc.com/pdf/Mid-Night_Tracker_Utility.pdf A good idea, but they beat you to it! :-( The...
Dave Maddlone
osdtm@...
Aug 2, 2006 2:05 pm
5040
OK, you got me started. :-) Some of you on the list may know that I worked with Fred Blake in Seattle on a new generation PE and anti-cycling controls. ...
Dave Maddlone
osdtm@...
Aug 2, 2006 3:51 pm
5041
... What's your budget? The ideal camera would be a digital SLR with a telephoto zoom lense but you're talking some fairly serious $$ for a setup like that. ...
... cared for ... resembled ... stange ... that you ... about how ... childhood ... believe this is ... those to ... them with ... cool-white ... know about ...
... Of course it does. Look at the Northeastern locales for further proof, especially in the suburbs of Baltimore, Philadelphia, Boston, etc. ... Well, the...
... same ... you ... with mercury in the 70's, and recall the changeover in a few spots to HPS. I immediately thought that it looked like puke (literally)....
Those were the days when you would walk under the pale bluish white glow of mercury vapor street lights and parking lot lights. I remember this in California...
Sometimes even lamps with low hours have swirling arcs in the arc tubes. I am not sure of the cause, but it seems that in those lamps not all the salts...
Hello Group, I would like to acquire a 175w merc roadway "cobrahead" style fixture for a reasonable price. I can do my own ballast and wiring on a "gutted"...
Don, Do an eBay search under "luminaire" & look for a seller named USA Excess Supply. They sell a bunch of NOS GE M250 & M400 lamps at reasonable "buy it now"...
I need capacitors for a 1000 watt mercury vapor ballast. Here are the specs: 2 Capacitors @ 360 Volts AC and a UF rating of 15 each and 1 Capacitor @ 480...
Also another note about capacitors... The voltage rating on the cap is the maximum voltage it is internally insulated to not flash over in the layers of...
... the ... I just wanted to make sure on this because both Advance and Universal online cataloges say for 1000w merc the cap is 24uf, min. 450vac. These of...
Thanks for the tip! Don ... for a seller named USA Excess Supply. They sell a bunch of NOS GE M250 & M400 lamps at reasonable "buy it now" prices. Most are...
There was a NEMA 100W HPS (it had a "10" yellow sticker) security light near a power substation road that cycled constantly for about 2 years back in the late...
I know this is an old post but I finally got a ferrite core from a old TV flyback transformer. Couple questions: 1.What guage magnet wire do I need for both...
You are half correct, it was simply a method of preventing the mounting frame from scraping away some phosphor coating. Old lamp mounting frames were all hand...
What causes blackening in a mercury lamp is the length of time it takes to go from the glow to the arc phase during starting. Usually this takes less than a...
These are the international standard names of the bases as defined by the International Electrotechnical Commission, used in almost every country of the world...
The other way to blacken an arc tube...which I discovered by experimenting is to use a small battery powered fluorecent fixture (like 4 watt or so) and be sure...
Many years ago, I managed this rather quickly by putting a dimmer switch on an HX autotransformer ballast with a 175 watt lamp. Run low enough to keep the lamp...
1. I used 18 AWG, (180 deg. C) magnet wire. Wind in layers with Kapton tape between each layer (could also use polyester). I used 64 turns on the primary & 32...
... for a seller named USA Excess Supply. They sell a bunch of NOS GE M250 & M400 lamps at reasonable "buy it now" prices. Most are sodium vapor(UGH!), but...
... It really depends on the lamp, this isn't a one size fits all thing. You probably won't get 175W out of one of these ballasts, even the four lamp version...
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