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Ed Jacobs
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Post subject: Majestic model A-C power supply Posted: Nov Sun 11, 2007 4:25 am |
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Joined: Jan Thu 01, 1970 1:00 am Posts: 5617 Location: Portland Oregon
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I am looking for a picture of the top, actually, of the whole thing if I can, of this Majestic Grigsby Grunow A-C power supply. I need to make a cover if I can find out just what it should look like.
Ed

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Joe Cro N3IBX
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Post subject: Re: Majestic model A-C power supply Posted: Nov Sun 11, 2007 7:21 am |
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Joined: Jan Thu 01, 1970 1:00 am Posts: 524 Location: Washington Crossing, Pa. USA
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Ed Jacobs wrote: I am looking for a picture of the top, actually, of the whole thing if I can, of this Majestic Grigsby Grunow A-C power supply. I need to make a cover if I can find out just what it should look like. Ed 
Ed - Please send a seperate email to me at: n3ibx@verizon.net
I'll do a fotoshoot of mine and send you the pics. I'm only too glad to help.
Regards,
Joe Cro N3IBX
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Joe Cro N3IBX
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Post subject: Posted: Nov Sun 11, 2007 8:38 pm |
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Joined: Jan Thu 01, 1970 1:00 am Posts: 524 Location: Washington Crossing, Pa. USA
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Ed - As per my email, I think the supply may have originally been "topless".
I did a dimensional fotoshoot of the whole thing (with a ruler next to it) and emailed you directly. I hope this info helps.
Very Best Regards,
Joe Cro N3IBX
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Ed Jacobs
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Post subject: Posted: Nov Mon 12, 2007 1:20 am |
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Joined: Jan Thu 01, 1970 1:00 am Posts: 5617 Location: Portland Oregon
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I appreciate the pictures very much Joe and looking closer at the top end , I'm sure you are right because there is on marking or scuffing at all. i don't think it ever had one .
Ed
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doug houston
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Post subject: Posted: Nov Mon 12, 2007 3:05 am |
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Joined: Jan Thu 01, 1970 1:00 am Posts: 5002 Location: Ortonville, Michigan
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Nope, they had lids. I'm not sure if I have one, but they were formed to go over the top edge of the main case. They had a square hole in one end for access to the 80 and the ballast. There was a piece, bent down 90 degrees from that opening, to prevent touching the terminals in the top of the supply. They were usually left off by the guys who worked on the set. That's why you rarely ever see one.
Two 6-32 screws held them in place. Those are always missing, even if the top is there.
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Ed Jacobs
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Post subject: Posted: Nov Mon 12, 2007 3:55 am |
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Joined: Jan Thu 01, 1970 1:00 am Posts: 5617 Location: Portland Oregon
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Another thing about this power supply is the very interesting finish. It has a leather grain texture to it but it has been painted on. I'm trying to figure out just how they may have done it maybe painted something really thick and then embossed the pattern. It definitely flakes off like paint and is about the same thickness. It's really well done and I would like to find out just what they did.
Ed
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Jim Berg
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Post subject: Posted: Nov Tue 13, 2007 8:01 am |
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Joined: Jan Thu 01, 1970 1:00 am Posts: 2732 Location: Northport wa. USA.
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Out of the 20 or so I have seen over the years of that model, I think only one had a cover on it. Think how hot that thing ran with the rectifier, power transformer, chokes, and a line ballast thrown in for good measure all in the same box, and with a lid on it! On the model 90 they took out the ballast and mounted it seperate on the cabinet. I think that is wrinkle paint, similar to that on AK radios and horns.
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