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Author Topic: Norelco/Philips FP-20 operation problem Bill Gabel Film God Posts: 3873 From: Technicolor / Postworks NY, USA Registered: Jan 2002 posted 07-25-2007 07:06 PM                     What position is the 2000 foot / 1000 foot switch in? Another thing to watch out for is the lower feed sprocket. If that lower spindle takes off really fast it can brake a tooth off the gear inside that drives that lower sprocket on the chain drive.  |  IP: Logged Mike Croaro Master Film Handler Posts: 394 From: Millbrae, CA Registered: Apr 2005 posted 07-25-2007 08:11 PM                     Carl Martin wrote: "mike, you worked the fine arts before keith, emily, and josephine took over?" Hi Carl: I worked at the Fine arts from about August 1995 until about March 1996. This is during the theatres stint as a Bollywood Cinema. The theatre was equiped with the Norelco FP-20S, "Tinny Table" film trasport (12,000 reels), and an old Green mono sound system. The screen was fitted with Rock N Roll Speakers from Guitar Center! The theatre closed about 4-5 months after I left as the Bolloywood operation moved into the Bal Theatre in San Leandro. Sometime after that the Fine Arts re-opened as a rep house. Nice to see you posting again. Mike  |  IP: Logged Peter Conheim Film Handler Posts: 16 From: El Cerrito, CA Registered: Feb 2007 posted 07-26-2007 07:45 PM                     Bill... I've been running the beast in 2000' mode. Still have found no way at all to lower the speed of the takeup. I can't imagine having that much torque doing anything good to the films it's projecting! Still need to sort that out. PC  |  IP: Logged Bill Gabel Film God Posts: 3873 From: Technicolor / Postworks NY, USA Registered: Jan 2002 posted 07-26-2007 08:17 PM                     My pair run change-overs daily. I have it set at 2000 foot also and have no problems. In the 1000 foot setting it's much littler on the take-up.  |  IP: Logged Peter Conheim Film Handler Posts: 16 From: El Cerrito, CA Registered: Feb 2007 posted 07-26-2007 09:12 PM                     Bill - a follow up question, then: when you run your changeovers as normal, does the take-up spindle spin fast when the reel runs out? I.e. in the "fast wind" mode? Because mine does nothing BUT spin that fast. Thanks... PC  |  IP: Logged Bill Gabel Film God Posts: 3873 From: Technicolor / Postworks NY, USA Registered: Jan 2002 posted 07-26-2007 09:37 PM                     Yes, once the reel finishes it does spin fast. (in the 2000 foot mode) So in the 1000 foot mode, it's the same as the 2000 foot mode?  |  IP: Logged Peter Conheim Film Handler Posts: 16 From: El Cerrito, CA Registered: Feb 2007 posted 07-27-2007 03:18 AM                     Perhaps slightly slower in the 1000' mode, but still taking off like an airplane. Tail shredder! If you are confident that the torque motor doesn't pull so hard in normal operation that it could stress perfs on the lower sprocket, it wouldn't be such a worry. PC  |  IP: Logged Mitchell Dvoskin Phenomenal Film Handler Posts: 1869 From: West Milford, NJ, USA Registered: Jan 2001 posted 07-30-2007 11:56 AM                     Yes, the takeup will spin very fast with no film threaded. The issue is not how fast it spins with no film, but how much torque it has. In 1000' foot mode, it should have less torque than in 2000' foot mode. Both modes will spin at roughly the same speed at the end of a reel. After threading the projector, you turn the brake off so that the electric takeup is holding the film tightly. Upon starting, there should be enough torque so that the film is always tight around the takeup and does not loosen and snap. Put a takeup reel on the projector and turn off the break, thereby turning on the takeup motor while holding the reel. You can feel how much takeup tension each mode puts on the reel while holding it from turning. For those not familiar with this projector, both the feed back tension and the takeup tension is generated by electric motors with no slip clutch, much like an old reel to reel tape deck.  |  IP: Logged Damien Taylor Master Film Handler Posts: 493 From: Perth, Western Australia Registered: Apr 2007 posted 07-30-2007 03:21 PM                     I'm pretty sure i know what your getting at Mitchell. At the end of every reel on my Teac A-3340S it would take a moment for the kill switch to realize there was no tape left, but it was enough to the shed oxide off the last 30 centimeters of every reel on the tape head cover. If you tried to touch the reel you would probably lose fingers since they were aluminum NAB reels. There is just so much torque behind that machine, it always looks like its putting too much stress on the heads.  |  IP: Logged

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