Sources for 8b TTL keyboards (Keytronics)

[Curt @ Atari Museum]

Here is another solution:

http://www.swtpc.com/mholley/CT_1024/KBD5_Assembly.pdf

Look at page 6 for the parts list, you could build your own PIO encoder 
board, you'll have to do some digging around for a 2376 keyboard 
encoder, but places like netcomponents.com and freetradezone.com are 
great sources for obsolete IC's




Curt




ROBO5.8 wrote:
> Hi Folks,
>
> It's been interesting taking out my old CP/M stuff and getting it
> operational again.
>
> My system uses an 8bit TTL Keytronics Capacitive Sense keyboard.  It was
> operational for about an hour and then it quit.
>
> It turns out that the keyboard uses little sponge pads to hold the
> capacitive disks and they have biodegraded into dust.
>
> So I went looking for an old 8b TTL replacement keyboard.  So far no luck.
>
> I also looked for a black box solution that would take an AT or PS/2
> keyboard and convert it to a parallel port output.  So far no luck.
>
> So let me turn to the experts and ask for advice and suggestions.
>
> Please advise
> Robo
>
>
>