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Lisa Keyboard Pads
Posted by: haplain on 2017-05-01 10:48:50
Found this on eBay. Seems like a really good price. I've seen people trying to sell them for $3.00 a pop...

http://www.ebay.com/itm/1-Set-of-100-Foam-Capacitive-Pads-for-Vintage-KeyTronic-Style-Keyboard-Repair/272636680075?_trksid=p2060778.c100276.m3476&_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D1%26asc%3D20140725133649%26meid%3Dd9ead83734b240778b43e77682349ee0%26pid%3D100276%26rk%3D2%26rkt%3D4%26sd%3D302297095267

Posted by: Juror22 on 2017-05-01 16:02:41
I added them into my watch list - I don't need them yet, but someday I suppose I will.

Posted by: Schafeman on 2017-05-02 06:12:15
Oh awesome, YOU have just saved me a TON of money and time.  I did buy some of the very expensive, factory made ones, since I thought I just needed a couple to repair a few bad keys.  Turns out, after I dug in a bit, more keys kept breaking since those foam pads are so fragile at this point.  I would have cost me over a hundred bucks to replace the rest!  Now I can just do them all 🙂

Posted by: ScutBoy on 2017-05-02 06:22:12
I just bought their last set - hopefully they'll have more.

Posted by: haplain on 2017-05-22 23:02:15
Yeah I've seen people charging a lot more so I figured I'd post this as it's a fair price.

Posted by: james_w on 2017-05-23 05:05:43
Anyone in Europe: there's a similar listing here with lots available at what looks like a good price from Germany: http://www.ebay.com/itm/Victor-9000-SIRIUS-1-Keyboard-repair-Foam-Pads-for-KeyTronic-Keyboards-/121266887970?hash=item1c3c11dd22:g:HRYAAOSw91NTtPPK

Edit: looks like they only supply the foam, rather than a full replacement for the whole pad (inc capacitive foil etc)

Posted by: slomacuser on 2017-05-23 11:06:10
Some said that the foam is not hard enough and that they are not good replacement ... I do not know about above ones

Anyone in Europe: there's a similar listing here with lots available at what looks like a good price from Germany: http://www.ebay.com/itm/Victor-9000-SIRIUS-1-Keyboard-repair-Foam-Pads-for-KeyTronic-Keyboards-/121266887970?hash=item1c3c11dd22:g:HRYAAOSw91NTtPPK

Edit: looks like they only supply the foam, rather than a full replacement for the whole pad (inc capacitive foil etc)
Posted by: Schafeman on 2017-05-23 18:18:48
^ The ones I ended up buying in the link at the top don't work at all!  The foam is way too dense and the keys don't feel right (and don't work anyways).  Sadly, the ones that were $3 a pop worked perfectly and now I have a 80% non-functional keyboard 🙁 .  The seller said he'd make it right, but I haven't heard anything back yet.

Posted by: james_w on 2017-06-16 06:39:18
Some said that the foam is not hard enough and that they are not good replacement ... I do not know about above ones
That's a shame. Well I've bought one set and will see how it goes. Right now all my collection is in storage whilst I renovate my house so I'll find out in the Autumn/Winter whether the foam is any good

Posted by: mactjaap on 2018-03-10 12:00:50
For future reference:

bought these

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.nl%2Fulk%2Fitm%2F322965499692

looking for a video how to do this. Anyone has seen one?

Posted by: MOS8_030 on 2018-03-10 12:31:23
There's several videos out there. Do a search for Keytronic foam pads or Keytronic foam and foil.


Also here: http://lisafaq.sunder.net/lisafaq-hw-kb_repair.html

http://www.sol20.org/keyboard.html

https://www.solivant.com/sol20kbd/

etc.

I've been researching this. Still trying to decide if I'm going to do it.

Posted by: mactjaap on 2018-03-10 15:51:23
Thanks! This helps. I will try to it not in a rush..

my enter and space is not working. Same for a few characters. So I have to do the job.

Posted by: gilles on 2018-03-11 05:03:08
the pads from the ebay listing do not have the rigid top discs, so they must be glued to original discs (that can remain in place in the keyboard). It is the same method I used weeks ago.

Posted by: mactjaap on 2018-03-11 09:43:24
Thanks Gilles. I had a close look now and you are right. This is only the foam and the Mylar side. The hard plastic is not on it. I feel disapointed, because I paid to have a full replacement. Not to buy a half product. I will inform the seller that he should be more open about his product. I will do the same as you and glue the hard pastic parts form my orginional pads to these new ones. 

I will update this post with my results.

Posted by: bibilit on 2018-03-12 01:27:44
Yes i used a similar method when repairing a keyboard, i glued back the plastic discs and all worked fine.

Don't think you can have direct replacement those days, including the plastic part.

Posted by: snuci on 2018-03-12 08:50:43
For the plastic disk replacements, I used old overhead transparency sheets and double sided tape.  I punch them out with a 7/8" punch.  The two sided tape is a little hard to peel the paper off of the one side but it works well when you are done.  Might give you an idea if you don't want to use the old grungy plastic disks.

Posted by: Corey986 on 2018-03-14 05:21:13
For the plastic disk replacements, I used old overhead transparency sheets and double sided tape.  I punch them out with a 7/8" punch.  The two sided tape is a little hard to peel the paper off of the one side but it works well when you are done.  Might give you an idea if you don't want to use the old grungy plastic disks.
I do the same, I use low density foam from Home Depot which is sticky on one side and permanent double sided tape which does not require any peeling.  Then I punch out the sandwich.  The other key it so make sure the Mylar(space blanket) has the non conductive side outward since it’s not about conduction of electricity but the capacitance change of a compressed foam/disk with the Mylar. 

Posted by: mactjaap on 2018-03-14 14:46:54
Finished my keyboard!

It took me a sundayafternoon and some time in the evenings. But the result is fantastic. Every key, shift, caps lock, space is working again fine.

I made some pictures and videos allong the way, so I hope to make a DIY video of it for future reference.

Here is the result.

IMG_2675.JPG

Posted by: MOS8_030 on 2018-03-14 15:40:21
Nice to hear of a positive outcome.

I wish someone in the US would make those pads.

I'd pay money just to save the time of having to make them.

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