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Wow a Nice Find Today!!!!
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My dad and I went here there and everywhere looking for a can of Krylon Dove Gray paint (no luck) and i found these at a local hardware store and bought them all (9) for a dollar each. Oddly enough they have 400W Sylvania MH lamps in OLD looking sleeve, though i passed on them since i don't have a fixture for them. I'll be testing them tonight on my grandpa's F90T17 fixture. How old are these?
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But this is good stuff! Manual reset starters should have been the standard for preheat fluorescent lighting, since it trips and opens the circuit if a tube is burnt out. It'd have made preheat fluorescents even more reliable than they were already.
I'm not sure about the preheat reflector strip lights that my cousin's grandpa has/had though since i've never asked about them. I have no room for any fluorescent fixtures ATM so i don't want to ask yet. I have asked to relamp them and replace the starters but no answer yet. I disconnected the non-working ones to save the ballasts for now by pulling the chain switch and wrapping it around the fixture so no one can reach it.
No one really ever goes out into the garage anyways so i guess she finds no need for me to fix them though I'd really love to see them all working again. Only one lamp out of six works properly. One doesn't light at all, two strobe a lot, and two strobe at the ends.
if the lamp goes EOL after a few flashes the starter heats up enough and pushes the button out,its spring loaded to break the circuit, then when lamp is replaced you simply press the button and new lamp lights up!
nothing happens when lamp is working and the button is pressed
they are interchangeable with regular starters, but since these watchdog ones provide protection the ballast is saved from damage and starter life is much longer since lamp can't cause it to get "stuck"( bimetal strip in starter glowbottle welded together)
as far as the small pins...I don't know, my sylvania FS-84 starters have it too along with reset button
I do wish they made HPS ignitors like this where they were easily removable and resetable
I might have picked up a yardlight if they were special (like w/ coated lamp, BT 25 lamp etc), and probably a Metalarc too if they were vintage and probably one of those clear starters too.
Anyways if you're retrofitting from SL to HO make sure the ballast channel is deep enough to fit the HO ballast if not you'll have to find a shallow case HO ballast (not sure if they make those for 8 footers) or use a electronic HO ballast.