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Author Topic: Strong Switcher supplies age/improvements Tim Reed Better Projection Pays Posts: 5246 From: Northampton, PA Registered: Sep 1999 posted 09-12-2004 11:21 AM                       Thanks, guys. Yes, Justin, there are a lot of Lumexs still around. You might want to get the DC igniter upgrade, though, to use with the switcher...  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 09-12-2004 12:38 PM                     Tim, The Super Lume-X, Super-80 and Ultra-80 all still have AC igniters (though not the old neon tube type of the Lume-X) and the switchers work just fine with them. Strong switchers also fire Kinoton lamphouses just fine too. Steve  |  IP: Logged Tim Reed Better Projection Pays Posts: 5246 From: Northampton, PA Registered: Sep 1999 posted 09-12-2004 01:24 PM                       Thanks, Steve. Will one of the AC igniters for a Super Lumex, 80, et.al., fit in a Lumex? I know Mark said the DC igniter would fit, the holes lined up, etc. Although I can't imagine the igniter from a Super Lumex fitting in a Lumex, and I'd really like to get rid of the neon tube igniter, since they were never the most-reliable. Or, probably the easiest route: was there a replacement board/upgrade for the Lumex igniter that got rid of the neon deal? Where's Pat Moore on all this?  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 09-12-2004 06:40 PM                     Tim, The ignitor from the Super will not fit the Lumex....entirely different beast. Your ignitor can be upgraded to dc just by changing the board. Strong still uses the same black box HV coil on the new unit.... which because of HV leaks was actually the culprit of the lamps not reliably striking in the first place. The DC board does make the ignitor work far more reliably overall though. Mark  |  IP: Logged Justin West Master Film Handler Posts: 271 From: Peoria, IL, USA Registered: Jul 2001 posted 02-06-2005 09:52 PM                     Ken, Tim, Mark, et al: quote: Ken Layton The old High Recactance supplies Strong made for the Lume-x and Super Lume-x had 100 volt no load. The Switchers typically have 150 volts no load. That ought to fire just about any igniter. I happen to have one of those old high reactance power supplies (Strong model 61001-4) and I am removing the old capacitors to replace them with fresh ones. there are two (2) 37000MFD, 75VDC caps in parallel (3" diameter x 5 5/8" long) and there is also a smaller single 1100MFD, 150VDC cap as well. When you say, Ken, that there is a 100v no-load in a high reactance model, how did Strong get away with these 75VDC units in parallel? Just trying to learn this tech stuff...one piece of equipment at a time!  |  IP: Logged Ken Layton Phenomenal Film Handler Posts: 1452 From: Olympia, Wash. USA Registered: Sep 1999 posted 02-06-2005 10:33 PM                     Think of it this way, there are two sections in the supply. One section, the "boost" voltage section provides the high 'no load' voltage of 100 volts to trigger the igniter board. The other section is the 'operating' section which provides the low voltage high current (and well filtered) power to operate the bulb. The 1100 uf @ 150 volt capacitor is the boost cap. The 37,000 uf @ 75 volt caps are for the operating section.  |  IP: Logged Justin West Master Film Handler Posts: 271 From: Peoria, IL, USA Registered: Jul 2001 posted 02-07-2005 11:36 AM                     Thanks...I see what you mean, Ken! BTW, I would like to find a source of such caps. I found that Mouser offers the 37000uF@75VDC models but they do not have the 1100uF@150VDC models. Also, do I need to make any adjustments (maybe use a different capacitor) if this PS is going to be used with a Lumex lamphouse?  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 02-07-2005 02:45 PM                     Try DigiKey or Newark Electronics and check out the mallory line of caps  |  IP: Logged

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