On Sat, 21 Nov 2020, Pete Turnbull via cctalk wrote:
On 20/11/2020 17:59, Tom Hunter via cctalk wrote:
Hi Patrik,
As to the superglue - it was the only option because the prongs are just
melted flat. To get the key mechanism out or off I had to scrape all the
melted plastic off. I then
On 20/11/2020 17:59, Tom Hunter via cctalk wrote:
Hi Patrik,
As to the superglue - it was the only option because the prongs are just
melted flat. To get the key mechanism out or off I had to scrape all the
melted plastic off. I then subsequently re-attach the key mechanism to the
aluminium
org> wrote:
> Hello Tom,
>
> Am 20.11.2020 um 15:11 schrieb Tom Hunter via cctalk <
> cctalk@classiccmp.org>:
>
> > I have managed to completely disassemble the bad Osborne 1 keyboard
>
> Congrats on that!
>
> > The silver tracks remained undamaged as con
Hello Tom,
Am 20.11.2020 um 15:11 schrieb Tom Hunter via cctalk :
> I have managed to completely disassemble the bad Osborne 1 keyboard
Congrats on that!
> The silver tracks remained undamaged as confirmed with a multimeter.
Very wise to check this while all is disassembled
I have managed to completely disassemble the bad Osborne 1 keyboard -
remove all key mechanisms (body, plunger, main spring and actuator spring),
remove the 3 layer membrane from the aluminium backing board and separate
all three membrane layers (bottom, spacer and top) - all without damaging
Hello Al,
Am 21.09.2020 um 14:08 schrieb Al Kossow via cctalk :
> you might be able to change something if you can inject a solvent into the
> side of the switch by drilling through the top layer
And then, the solvent is meant to stay there?
I had bad experiences with "put magic fluid in
On 21/09/2020 12:41, Tom Hunter via cctalk wrote:
The problem I am seeing is that 3 keys ("h", "j" and "y") are permanently
pressed.
I'm not familiar with this keyboard, so despite having fixed lots of
other types, what I'm about to write is no more than musing and may be
inapplicable
On 9/21/20 6:41 AM, Tom Hunter via cctalk wrote:
I cleaned the now exposed membrane using Isopropyl alcohol - no change in
resistance.
I don't think you've really exposed anything, have you? The membrane is
going to be three layers - a bottom layer with traces on the upper side, a
spacer
Hello Tom,
Am 21.09.2020 um 13:41 schrieb Tom Hunter via cctalk :
> Has anyone got experience repairing or restoring this type of membrane
> keyboard mechanism used in the Osborne 1 and probably in other keyboards too?
Not with the Osbornes, but with others. This kind is cheaper to manufacture
On 9/21/20 4:41 AM, Tom Hunter via cctalk wrote:
I cleaned the now exposed membrane using Isopropyl alcohol - no change in
resistance.
https://deskthority.net/wiki/Membrane_keyboard#Spring_over_membrane
you exposed the top of three sheets.
the contamination/deformation is between the two
I am trying to figure out if it is possible to repair a Osborne 1 keyboard.
The keyboard is made by "Oak Switch Systems" and the type is FTM or "Full
Travel Membrane".
The problem I am seeing is that 3 keys ("h", "j" and "y") are permanently
p
https://www.elecshopper.com/osborne-1-keyboard.html
I have no way to test it.
Cindy Croxton
Electronics Plus
1613 Water Street
Kerrville, TX 78028
830-370-3239 cell
sa...@elecplus.com
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