These are the "KEYTOP (SPRING CUSHION )" style.  

I did find that they will snap on.  I don't recall doing that in the past (60 years ago), but snap on is easier.  To take off though, I did find that they came off easiest with a quarter turn CW and then lift.  You'd think they reverse would work as easily.

I believe I got my original instructions from Ray Morrison since that's the source of the keyboard at that time, I just don't remember exactly his instructions.    

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The above comments or recommendations are SWAG. Use at your own risk.
John, W9DDD
On 1/29/2022 11:56 AM, Joe Duszyński wrote:
And if they are celluloid tops or glass and paper they have three metal tabs you bend out to change the top.
I just did a glass and paper keyed keyboard here recently. 

On Fri, Jan 28, 2022 at 9:58 PM William Wuttke <[email protected]> wrote:
No twisting needed. They just pop on.

Bill
KE3BK

On Fri, Jan 28, 2022 at 5:27 PM John W9DDD <[email protected]> wrote:
Should have started this with "what am I doing wrong?"

John, W9DDD


> On Jan 28, 2022, at 5:26 PM, John, W9DDD <[email protected]> wrote:
>
> My recollection is, 90 degrees clockwise to remove.  To install, bottom of symbol points to left, then 90 degrees counter clockwise to lock in place.  I don't remember having to use any tools to do this last time 60 years ago, but the darn things don't want to twist the 90 CCW.   Maybe I'm getting feeble?
>
> --
> ---
> ----
> The above comments or recommendations are SWAG. Use at your own risk.
> John, W9DDD
>
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