12972Re: [midatlanticretro] TRS-80 Model II keyboard
- Jun 10, 2009
Save the old foam pieces from the keyboard , I like to compare them this wknd when I get there.
Mike Loewen wrote:
On Mon, 1 Jun 2009, Mike Loewen wrote:
Based on the articles I've read about rebuilding capacitive keyboards, I think I can resurrect it. Unfortunately, I don't have the materials on hand. I'll see what I can dig up.
Going by hints in this article about rebuilding Sol 20 keyboards: http://www.solivant.com/sol20kbd/ ...I was 100% successful in rebuilding my Model II keyboard. I used a 7/16" hollow punch purchased in a set from Grizzly, a $3.00 Space Blanket from WalMart, a strip of 3/16" Track Foam from the local hobby store and a jar of Elmer's Rubber Cement. I used the punch to make 76 foam circles (use a drill press or a mill), then glued them to the conductive side of a sheet cut from the space blanket. I used the punch again to punch out the combination of foam and mylar circle, then glued the old plastic discs (after cleaning) to the back of the foam. The foam is a little stiffer than the original, but is perfectly usable and is not supposed to disintegrate. I think I can come up with a quicker procedure, by gluing a strip of mylar to a strip of foam, and a sheet of some sort of plastic document protector to the other side, and using my hand-operated punch-and-die to punch out all three at a time. Maybe we'll try it this weekend at VCW. Mike Loewen mloewen@... Old Technology http://sturgeon.css.psu.edu/~mloewen/Oldtech/ ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/midatlanticretro/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/midatlanticretro/join (Yahoo! ID required) <*> To change settings via email: mailto:firstname.lastname@example.org mailto:email@example.com <*> To unsubscribe from this group, send an email to: firstname.lastname@example.org <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
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