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Posted by Joshua Waaland (Member # 287) on 07-15-2004, 09:26 PM:
 
I have a bracket that is mounted on my soundhead motor cover that I cannot identify. See picture. When I bought these I wasn't even sure what the covers were since they were not on the projectors. I had never seen any before. Can anyone tell me what this is?



Thanks,

Josh
 

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Posted by Mark Gulbrandsen (Member # 72) on 07-15-2004, 10:02 PM:
 
Sure,
Thats just for catching oil drips. Was used in conjunction with a drip pan mounted between the projector bottom and the mounting bar. Mainly for use with heads such as the E-7, or Super Simplex which did drip alot. The drip pan dripped the oil into that catch all. The threaded hole on the side is for a drain valve. I guess Simplex thought the X-L didn't require the drip plate but in reality the X-L's are as messy as the E-7 and theer.

Mark @ CLACO
 

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Posted by Joshua Waaland (Member # 287) on 07-15-2004, 10:49 PM:
 
Mark,

Okay. Thanks for your help. I remember seeing that drip pan on some E-7 heads I almost bought. It makes sense now.

I will soon be undertaking the job of cleaning all the old oil and junk out of these heads. Is there a gasket set that I can buy and do you know a ballpark figure on cost? Thanks again

Josh
 

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Posted by Joshua Waaland (Member # 287) on 07-19-2004, 10:00 PM:
 
I need further help indentifying these parts. I have this soundsystem which I was considering selling (see picture) and am not sure what should go with it. I also took pictures of the inside back of the soundhead to show what was inside. I eventually want to fit these with red light sound pickups. What should I keep and what should go? I would like to have a digital soundsystem and am not sure what I need.











Also I was considering buying magnetic penthouses for these projectors. Would they run on the same sound equipment as a digital soundsystem or do I need different equipment for that? Like special magnetic sound amplifiers or the such? What should I expect to pay for 2 Simplex SH-1025? Thanks for your help.

Josh
 

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Posted by Aaron Sisemore (Member # 145) on 07-19-2004, 10:43 PM:
 
I may be interested in the large amp rack if the price is right

As for mag, besides the mag penthouses, you will need mag preamps (preferably modern ones such as the Dolby MPU) and a cinema processor that has 4 channel aux/mag/digital inputs (almost any modern stereo processor would work here)

-Aaron
 

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Posted by Jack Ondracek (Member # 1466) on 07-20-2004, 12:33 AM:
 
You have pieces of Simplex optical and magnetic sound systems. I had that combination at a theatre in Washington... very good equipment.

The two small boxes are the magnetic changeover controls. You would push the appropriate button along with the visual douser control when switching from one projector to the other. I don't recall seeing the larger box with the two rotary controls... sorry.

The large rack in our installation was the OPTICAL amplifier system. Either amplifier (or both in parallel) could be switched to the center stage speaker, using the control at the bottom... instant redundancy.

There should be another rack around there... with 3 amplifiers and (I believe) a monitor amp of some kind. In magnetic mode, those 3 amps powered the stage speakers, and the optical rack ran the surrounds. You're also missing a box or two of pre-amp strips that usually are on the wall, close to the penthouse... and the surround control circuitry. You're also missing another push-button box that would switch the system between magnetic and optical. Also, there should be a couple of boxes with large volume controls and a toggle switch at the top. Those would be for optical volume and changeover. One would also have a selector for switching to a mic and record player. The turnkey XL booth I worked in also had an exciter supply that was mounted in a rack almost as large as the amplifer rack in your picture.

Your soundhead looks like the SH1012 models I use at my drive-in. That's the first time I've seen the pre-amp under the exciter lamp. My heads have always been empty (my wife says mine is, too!).

If you convert your sound head to red reader, you won't need the exciter & slit lens assembly, the photocell assembly or the pre-amp. You could leave the preamp module in there, I suppose... but it won't be something you'll ever use after the conversion. None of that stuff is involved when running magnetic, anyway. The speaker box in your picture would normally be for monitoring the optical sound rack... or surrounds, when in magnetic mode. We had a monitor for the mag amps that looked like a stage high-frequency horn, except it had 3 speakers mounted in it... something like 6" cones, I think.

Considering the age of that stuff, it all looks very nice!

As for whether you could use any of it in a digital mode... that's probably a matter of opinion. I don't think many people here would do it in a commercial environment... the amplifiers are very nice, but they're old and were never designed for the kind of dynamic range required for digital today. You'd have a challenge on your hands if something major blew... like any of the iron in there. But COULD you do it? Sure.
 

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Posted by Joshua Waaland (Member # 287) on 07-20-2004, 04:57 PM:
 
Thanks for the info. So if I get a sound rack for digital sound like we had at Cinemark. It had a Ultra-Stereo JS-200 cinema sound processor a DTS-6D unit with reader and 7 QSC 1400 amps. All I would need then to run mag penthouses would be mag preamp right?

These projectors were never fitted with mag sound so I shouldn't be missing anything then as far as the current soundsystem goes. I uninstalled them and I took everything that was attached to the soundsystem except the speaker which they got rid of. But I want to ditch this soundsystem and go with the newer kind. So as far as the soundhead goes I can get rid of the exciter supply (which I am guessing is the pull out deal with the tubes mounted on it) and the entire cell ass'y including the circuit board on the back with wiring soldered to it right? Thanks again for all the help!

Josh
 

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Posted by Phil Hill (Member # 371) on 07-20-2004, 05:19 PM:
 
Josh,
If you decide to split up that old audio package, I would be interested in the top 3 smaller boxes on the left of your pic.

Also, SH-1025 mag soundheads come up on eBay every now and then for about $150.00.

Thanks!

>>> Phil
 

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Posted by Aaron Sisemore (Member # 145) on 07-21-2004, 01:49 AM:
 

quote: Joshua Waaland

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So as far as the soundhead goes I can get rid of the exciter supply (which I am guessing is the pull out deal with the tubes mounted on it) and the entire cell ass'y including the circuit board on the back with wiring soldered to it right?

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The pull-out unit with the two tubes is the optical preamp module- The exciter supply is the bottom unit in the large rack.

Yes, to convert to modern exciter/solar cells or a red LED reader, you will be removing all of the hardware for the old phototube reader assembly.

-Aaron
 

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Posted by Jack Ondracek (Member # 1466) on 07-21-2004, 02:33 AM:
 
Joshua's last post got me thinking there might have been other uses for those changeover boxes.

I my XL booth, the soundheads were standard SH1000s. The preamps, which look a LOT like the ones Joshua has in his 1007s, were mounted on the wall in the same box with the volume control for that projector, and a 3-way switch to changeover the exciter lamps.

I'm wondering now if those smaller boxes, which I used for mag changeovers, would be used in this case for switching the optical preamp outputs? It would make sense.
 

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Posted by Bob Koch (Member # 1062) on 07-23-2004, 07:34 PM:
 
The pictures are of an XL 12 24 OPTICAL soundsystem, circa 1951.The preamp under the exciter lamp had a single 6j7 and came out at 500 ohms went to the xover cabinets which contained latching relays to select the proper projector, thence to the non sync cabinet which contained an identical preamp to the ones in the sound head and could used as an emergency sacrificing the non-sync. No equalization was used in the pre amps. It was all done in the 500 ohm link cct in the non- sync cabinet that then went to the input xformer on the power amp which was either an AM1026 or AM 1027, both had similar circuitry but the smaller power amp had 6l6`s in the finals while larger had 807`s.
 

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Posted by Joshua Waaland (Member # 287) on 08-13-2004, 09:17 PM:
 
I just bought 2ea used SH-1025 mag penthouses and tried mounting them to these projectors. I figured out how they bolt to the picture heads but there seems to be a plate missing from the area between the picture head and the penthouse. Also the plate that was originally bolted to the top of the picture head which held the crescent shaped roller assembly and the upper magazine will not fit on the top of the penthouse. It is too big to fit onto the penthouse. I just figured that I could remove it from the picture head, bolt down the penthouse, then bolt it onto the top of the penthouse. No can do.

Does anyone have any plates available that would fit it? If so please e-mail me. Thanks.

Josh
 

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Posted by Dan Lyons (Member # 1454) on 08-14-2004, 12:20 AM:
 
have a pic of it? Here is mine, top bracket has large holes for standard reel arms, and 3 smaller holes which i'm guessing are for the magazine/fire rollers.
BTW: Does anyone have a manual or parts manual for these things?

 

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Posted by Tony Bandiera Jr (Member # 2365) on 08-14-2004, 12:54 AM:
 
Dan: I think I've got a manual in my storage place..when I get my car back on Monday I'll look for it.

And if I find it, I'll get it scanned and posted on the site for everyone.
 

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Posted by Jack Ondracek (Member # 1466) on 08-14-2004, 01:21 AM:
 

quote: Bob Koch

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The preamp under the exciter lamp had a single 6j7 and came out at 500 ohms went to the xover cabinets which contained latching relays to select the proper projector

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quote: Jack Ondracek

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Your soundhead looks like the SH1012 models I use at my drive-in. That's the first time I've seen the pre-amp under the exciter lamp.

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I use a SH-1012 at my theatre too. We we got it, it looked alot like the photos above, preamp installed under the exciter. When we took it up to Louisville, KY last summer to have it rebuilt and red reader installed, they removed all of the older preamp parts, brackets, exciters, etc., and put them in a box for me. The area in the soundhead where all of that stuff was is now empty and is a perfect place to hide cigarettes from your wife, appurature plates, the key to the lawnmower, etc.. I actually just threw away those old parts a month or two ago. My motor cover doesn't have that bracket in the first picture.
 

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Posted by Joshua Waaland (Member # 287) on 08-16-2004, 05:01 PM:
 
Here are some pics so you can see what I am dealing with.



This is a pic of the bottom of the mag penthouse. Notice that there seems to be a bracket missing from where the film exits the casting.



This is a pic of the projector the way it sits now. I just want to add the penthouse underneath the upper magazine.



Here is the top of the projector with the magazine removed.



Here is the pic of the current plate that is installed on the top of the projector.



As you can see it does not fit onto the top of the penthouse correctly. So I need the plate that goes on the bottom of the penthouse between the penthouse and the picture head. And I also need the plates that go onto the top of the penthouses so that I can still mount my upper magazines. I will need two of each of these. Anyone have some they can sell me? Thanks.
 

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Posted by Gordon McLeod (Member # 33) on 08-16-2004, 05:28 PM:
 
Remove the fire valve assembley (3 screws usually 2 at the back one at the front inside)
remove the plate attached to the top of the projector
put the penthouse on top and attach with 4 screw that will go down through the 4 holes in the bottom of the penthouse that held the plate on
 

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Posted by Joshua Waaland (Member # 287) on 08-16-2004, 09:19 PM:
 
Gordon,

Thanks. The penthouse has a recess molded into the casting to go around the fire shutter button. My concern is how do I mount the plate on top of the penthouse (that has the bolt holes in it for the upper magazine to attach to)? The penthouse is not drilled and tapped for this purpose. Look back at page one of this thread and notice how Dan's plate on top of his penthouse is machined differently. Someone somewhere must have a set of these laying around.

Tony can I get you to send me a copy of that manual please? Thanks.
 

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Posted by Joshua Waaland (Member # 287) on 08-27-2004, 07:31 PM:
 
I decided to let go of this sound system. I figure there are many other people out there who would appreciate it more than me. I know a lot of people wanted me to part it out. Sorry but I figure it is worth more if kept together. Plus there were too many people who wanted it. I figure you can fight it out on ebay. I listed it on there tonight. My ebay username is joshjens. Thanks.
 

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