If you are going to build a system with it, Smart also had a three channel, full octave equalizer called the EQ-600. I have even used them to eq the surround channel on old Dolby CP-50s back in the days before Dolby incorporated surround eq into their processors.
Smart, btw, is one of the easiest companies to work with when it comes time to repair something that is no longer in production. I bet if I could dig up a broken SR-130, Oscar would fix it for me.
Russ
I can get you a manual. I have already e-mailed you this morning asking for your address for shipping.
Russ is correct. The SG1130B will directly accept a solar cell connection. It can be used as a standalone 4 channel stereo synthesizer for mono prints.
We made a version called called SG1130BX (no solar cell input and no fader) which had to be used with an existing stereo processor .
Let me know if you have any questions about the product. Believe it or not, we still have a few of these in stock, and we occasionally sell one. In fact we have sold a couple with Panastereo processors. Talk about the old with the new!!
Best regards,
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Oscar Neundorfer
Chief Engineer
SMART Devices, Inc.
oscar@smartdev.com
You are correct! We still repair SR130 processors. Believe it or not, there are still quite a few of these old things in service today, and we occasionally get one back for repair. Basically, as long as we can get parts, we will repair pretty much anything we ever made.
I have been here for almost 18 years, and the SR130 was obsolete when I came to work here. But we still fix them.
One day we may stop repairing some of the older stuff, but as of now we still do it.
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Oscar Neundorfer
Chief Engineer
SMART Devices, Inc.
oscar@smartdev.com
If you will send that manual (and any others you have) to me, we will be pleased to host the downloads here for everyone. 
My address is: Flix@film-tech.com

Besides, Radio Shack has long been known for supplying premium parts at a low cost to manufacturers!!Brad, I have been meaning to start supplying you with some manuals. Do you want the actual manuals, or do you want ready-to-go pdf files, or what? I can do pdf's if that will help. Unfortunately, most of the older manuals were not done on modern computer programs which allow easy conversion to pdf. So, I will probably have to scan them and then convert the image files to pdf. However, the newer manuals (for the last several years) can be easily converted. It will just take a little time to do. Fortunately, some are already done.
I will work on it in my "SPARE" time.
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Oscar Neundorfer
Chief Engineer
SMART Devices, Inc.
oscar@smartdev.com
If you've got manuals that were originated in electronic form and can easily convert them to pdf, by all means please do. If you've got paper manuals, please send me single sided photocopies of them as opposed to scanning them in and then converting them. If an image file is converted to pdf, the file size is roughly 10 times over what it needs to be. I will convert those directly into pdf format.
Then when I called Smart about 4 years ago with questions about one of their music distribution units (a 1987 model) the first thing the person told me was 'Are you SURE its a product of ours?'
However, I did get manuals for the MOD II's I was installing, and got to talk to a much friendler operator, Megan, who has the cutest Georgia (Jaw-Juh!) accent, and was so helpful... Whenever I have to call Smart Devices, i request to talk to Megan 
(BTW, I never did get the info i requested on the music distro unit (which by now has gone to the giant Ebay auction in the sky))
Aaron

Mark, I know you don't have any problem with where we get our parts. Didn't you see the big grin in my post? By the way, in case anyone is wondering, I don't in MY almost 18 years remember using Radio Shack parts in our equipment, although who knows what might have happened when I wasn't looking! But seriously folks, we do buy our parts through reputable parts distribution channels and we try to use high quality parts throughout our product line.
Now, if you want to discuss the designs, well, that you can take up with me, but be prepared to fight
Before you get ready to put on the gloves, let me the first to admit that I have made my share of mistakes, so you may take me down with one easy punch.
I don't recall if we still have the Reticon time delay chips available anymore, but I will look. If not, maybe Radio Shack has some in their back room. (Just kidding you, Mark) Actually, the part is obsolete, but I may still have some. I don't even remember the SG1130 using the Reticon. I thought it used only the Panasonic delay chips, but I will check into it.
The modules are no problem. I believe we still have some of those or can make some if needed.
Aaron, I apologize if you could not get the information you needed on the music dist. system. We have made 2 models, the DA-8 and the DA-226. I have been at SMART for almost 18 years, and so I have a great deal of history taking up space in my brain. Other employees, especially people in the service department who usually handle service calls, unfortunately don't always have the same level of information that I do because they just haven't been there as long. So, I imagine that someone just didn't recognize the particular product about which you were calling. As much as I dislike this, it does happen.
Also, SMART has produced a bewildering array of products over the years, and I must tell you that I have trouble sometimes remembering the details about the variation on the variations on top of other variations. It does get confusing at times.
In our defense, you would be amazed at the sheer number of phone calls we get asking about products that are CLEARLY not ours, and then the caller will actually argue with us!! Maybe since we have a 800 number, people just call us first regardless.
I am glad you got to talk to Meghan. She will try her very best to get you what you need, and her accent is great isn't it? But then we are a JawJuh company, so you should expect that (except from the Yankees we have working here.)
Brad, do you actually re-key all the text and copy the pictures in the manuals you post? If so, that is one tremendous amount
of work?
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Oscar Neundorfer
Chief Engineer
SMART Devices, Inc.
oscar@smartdev.com
Oh yeah...and no stapling of the pages! That causes major problems. 