Lisa Keyboard Pads

[haplain]

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

 

[Juror22]

I added them into my watch list - I don't need them yet, but someday I suppose I will.

 

[Schafeman]

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

 

[ScutBoy]

I just bought their last set - hopefully they'll have more.

 

[haplain]

Yeah I've seen people charging a lot more so I figured I'd post this as it's a fair price.

 

[james_w]

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)

 

[slomacuser]

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)

 

[Schafeman]

^ 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.

 

[james_w]

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

 

[mactjaap]

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?

 

[MOS8_030]

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.

 

[mactjaap]

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.

 

[gilles]

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.

 

[mactjaap]

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.

 

[bibilit]

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.

 

[snuci]

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.

 

[Corey986]

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. 

 

[mactjaap]

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.

 

[MOS8_030]

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.