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Sorry, Not Sure Where This Goes - 3M Duplicating Exposure Unit "The Seventy"
For auction on eBay. Offering an extremely difficult to find
professional exposure unit for your consideration. This is a "3M 'The Seventy." The following is all the information I have regarding this handsome machine: "3M 'The Seventy.' 120V A.C. 60 Cycle. Exposure Unit 650 Watts. 3M Duplicating Products Division, Minnesota Mining & Manufacturing Company. Serial No. E70AGF930 A. Model E 70AG. Pattented Under U.S. Patent 3234868." The bulb reads, "3M, Made By GE 120V, 54-34. 78-8454-3463-4E." This is generally used in the medical, scientific, or optical/photography field for imaging. The top half of this machine plugs into the base & is turned on & off by a toggle switch on base. The top turns on an incredibly bright light. There is also a meter on the top w/red push button that seems to have a timer dial, several numbers and a "darker" and "lighter" range of settings. All red lights work perfectly. Considering the nice condition this is in I would feel quite certain saying it is a very solid, fully working exposure unit. Size is approximately 13" x 10" x 10 1/2" tall. Just under 17 pounds. Excellent opportunity to purchase this professional 3M product for a small fraction of the original price. Bidding is at $9.99. No Reserve. eBay No. 2566400046. Link: http://cgi.ebay.com/ws/eBayISAPI.dll...m=2566400 046 For All Of Arlykat's Auctions: http://cgi6.ebay.com/ws/eBayISAPI.dl...er id=arlykat |
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"Arlykat" wrote in message
For auction on eBay. Offering an extremely difficult to find professional [sic] exposure unit It is an old thermal duplicator, 60's vintage, made for home & small office use. Really horrid. Common as mouse droppings, though half as useful. Paper no longer made. This is generally used in the medical, scientific, or optical/photography field for imaging. What ignorant codswallop. -- Nicholas O. Lindan, Cleveland, Ohio Consulting Engineer: Electronics; Informatics; Photonics. |
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