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Old 20th Jul 2018, 6:28 am   #57
ricard
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Join Date: Mar 2006
Location: Lund, Sweden
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Default Re: Agaphone Wire Recorder

I don't know about the Agaphone, but at least Luxor licensed the wire recording technology from the Armour Research Foundation, and one might assume that that included not only things like the design of the spools but also the thickness of the wire too. (The attached image is from the license sticker found inside a Luxor TR75S).

I've always found it interesting that wire recorders tended (at least those I've read about and come across) to use AC bias despite the fact that since these machines were expensive in their day, especially for dictating machines one would have thought that cost saving measures such as DC bias or erase would be attractive for manufacturers. Or perhaps DC bias is more disadvantageous when used with wire compared to tape - I don't know.
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