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Sensitive power grooves

Sensitive power grooves

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I'm running these at 800 Ma hopefully they last longer

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Filename:20160328_082753.jpg
Album name:veryhighonoutput / I love linear
Keywords:Lamps
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Date added:Mar 28, 2016
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Solanaceae
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GoL Solanaceae.Keif.Fitz Keif Fitz bubby_keif
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Mar 28, 2016 at 09:44 AM Author: Solanaceae
800ma vs 1.5k Ma? I think you'd reduce life since the lower current would cause sputtering.

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Mar 28, 2016 at 09:56 AM Author: veryhighonoutput
Well I don't see sputtering run kinda nice these are losing vacuum as soon as I put 1500 ma's in them, just testing out I got nothing to lose execpt for another f48pg daylight

T12/ t17 there's a reason they made heavy magnetic ballasts

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Mar 28, 2016 at 12:46 PM Author: nicksfans
RS constantly heats the cathodes, so they shouldn't sputter.

I like my lamps thick, my ballasts heavy, and my fixtures tough.

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Mar 28, 2016 at 01:39 PM Author: arcblue
There seems to be problems with lots of the Powergroove lamps losing vacuum. A friend bought a case years ago where all but 3 or 4 lost vacuum quickly. I haven't tested all of the ones in my case of PG's but I run them on an HO rather VHO ballast at the moment. I'm not sure running them at lower loading will keep them from losing vacuum though; it didn't with my friend's lamps. I wonder what the defect is...there seems to be imperfections in the glass on the dimpled sections, almost as if it's porous...air leaks in and the lamps dim and go out (or sometimes just go out). Is that what you're experiencing? Maybe we should check the date codes on the lamps.

I'm lampin...

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Mar 28, 2016 at 04:37 PM Author: veryhighonoutput
These look like there from early 70s probably not a good run but these 2 so far going good with the 800 ballast they have been on all day

T12/ t17 there's a reason they made heavy magnetic ballasts

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Mar 28, 2016 at 06:10 PM Author: streetlight98
@ Keif; you won't get sputtering on RS, which is why manufacturers have gotten away with RS and TS ballasts that severely underdrive lamps.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

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Mar 28, 2016 at 06:28 PM Author: nicksfans
Unless it's one of these. Due to low ballast factor and poor quality control, some of them don't provide enough cathode heating and cause sputtering. If there was a "worst ballast ever" contest, I'd nominate these.

I like my lamps thick, my ballasts heavy, and my fixtures tough.

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Mar 28, 2016 at 07:04 PM Author: streetlight98
I'd nominate those stupid Benchlite ballasts.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

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Mar 28, 2016 at 07:17 PM Author: nicksfans
The Benchlites don't cause lamps to fail prematurely.

I like my lamps thick, my ballasts heavy, and my fixtures tough.

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GoL Solanaceae.Keif.Fitz Keif Fitz bubby_keif
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Mar 28, 2016 at 07:59 PM Author: Solanaceae
Ah I didn't realize it was rs.

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Mar 28, 2016 at 08:25 PM Author: veryhighonoutput
This ballast I'm using is that 80s watt miser ballast for 96" lamps seems to be operating them fine but it's not cold out wonder if it was how it would react? Will see that's when I always find issues

T12/ t17 there's a reason they made heavy magnetic ballasts

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Mar 29, 2016 at 04:46 AM Author: streetlight98
@ Nick. They may not kill the lamps prematurely but they are one of the worst ballasts ever.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

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Mar 29, 2016 at 10:13 AM Author: veryhighonoutput
I agree most new t12 ballasts suck

T12/ t17 there's a reason they made heavy magnetic ballasts

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Mar 29, 2016 at 10:40 AM Author: ace100w120v
Nah, the "LOA Shoplight" setup is worse than a BenchLite. I'd still take any working Benchlite, believe it or not!
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Mar 29, 2016 at 11:54 AM Author: nicksfans
^^^ Agreed.

I like my lamps thick, my ballasts heavy, and my fixtures tough.

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Mar 29, 2016 at 12:01 PM Author: Solanaceae
I'd take a bench lite, and rewind it with thicker gauge wire as an attempt for a 50w MV ballast.

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Mar 29, 2016 at 07:26 PM Author: streetlight98
Yeah I'd take the Benchlite ballast over an LOA "ballast" since the former can always be taken out and replaced with a REAL ballast whereas the LOA guts are pretty proprietary.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

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Mar 29, 2016 at 07:49 PM Author: DieselNut
I had two 96PGs fail in the manner yall describe. Have had several similar failures with F90T17s

Preheat Fluorescents forever!
I love diesel engines, rural/farm life and vintage lighting!

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Mar 29, 2016 at 07:51 PM Author: ace100w120v
Not in some of the later-model T12 Lithonia or American Fluorescent 4' shoplights, those "Ballasts" were housed in an F-can. I have two in use myself, though one only lights one lamp, a common issue with them. Granted, where it's being used I only need as much light as one very underdriven F40CW lamp puts out anyway.
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Mar 29, 2016 at 09:31 PM Author: don93s
As for the 800ma ballasts, they seem prone to capacitor degradation as well as the post 1980 2x40w HPF ballasts. At work, we have a bunch of those F96/HO fixtures, mostly Advance, and while I struggle these days with Sylvanias going mercury starved WAY before eol, another dimming problem is the ballasts themselves. Lamps will light to the output of regular slimline (~430ma) and quite often have a distinct 60hz flicker or oscillation. I then change ballast...BRIGHT again! I've measure the current on those dimmer ones anywhere from 400-500ma on what is supposed to be an 800ma lamp current ballast. Rubbish I tell ya.

As for the LPF/NPF 2x40w RS ballasts, yeah the lamps seem to last 2-3 times longer than any standard HPF RS circuit as long as the sockets are good and keep electrodes heated at the reduced current.
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Mar 29, 2016 at 09:41 PM Author: nicksfans
I think pretty much all Advance non-PCB magnetic ballasts made before the mid to late 90s have that issue. It's possible that the newer ones are also affected but they just aren't old enough yet for the problems to show themselves. I just haven't personally seen any post-1995-or-so ballasts dim out.

That said, I have a pair of NOS Advance 2x40 preheat ballasts from 1984. I have tested one of them, and there didn't seem to be any capacitor issues despite the ballast being over 30 years old. I guess the problem only arises if the ballast is actually in use.

I like my lamps thick, my ballasts heavy, and my fixtures tough.

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Mar 30, 2016 at 03:58 AM Author: veryhighonoutput
When I go to homedepot and see the f96t12 slimline fixture ran next to the t8 and t5 it looks so pathetic it doesn't even come close.I believe it electronic it's like why bother it could be a night light

T12/ t17 there's a reason they made heavy magnetic ballasts

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Mar 30, 2016 at 04:39 AM Author: streetlight98
T5s (specifically the HOs) are insanely bright when new, but they dim out once they're broken in and after several thousand hours, they're very dim.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

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Mar 30, 2016 at 06:13 AM Author: veryhighonoutput
I've noticed that they are either to bright or to dim to extreme for me

T12/ t17 there's a reason they made heavy magnetic ballasts

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Mar 30, 2016 at 02:43 PM Author: streetlight98
Yeah they loose efficiency worse than larger diameter tubes. Plus HO tubes tend to loose efficiency as they age too, so with T5s it's even worse since the phosphors end up being hotter. So I would imagine T5HOs in a hot climate would suffer a lot of lumen losses lol.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

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Mar 30, 2016 at 04:19 PM Author: veryhighonoutput
And kinda brownish light to

T12/ t17 there's a reason they made heavy magnetic ballasts

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Mar 30, 2016 at 04:44 PM Author: veryhighonoutput
And kinda brownish light to.Hey should I b running these single on its own ballast I just had a cool white die on me dammm

T12/ t17 there's a reason they made heavy magnetic ballasts

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