[sdiy] Calculighter - was Re: NEC D936CT chip in my Muppet Babies keyboard

Peter Pearson electrocontinuo at gmail.com
Mon Jul 10 01:32:01 CEST 2023


I think that would've been a slider ruler with a lighter attached but yeah,
strong agreement here.

On Sun, Jul 9, 2023 at 7:31 PM Adam (synthDIY) <synthdiy at adambaby.com>
wrote:

> Wow!
> NASA could have really used these back in 1969...
>
> [image: GPN-2000-001313.jpeg]
>
> On 10 Jul 2023, at 9:13 am, Peter Pearson <electrocontinuo at gmail.com>
> wrote:
>
> On the Casio end of things, does anyone have a schematic for the Casio
> QL-10 Calculighter?
>
> https://www.calculator.org/calculators/Casio_QL-10.html
>
> Saw something about it in a recent "Bad Gear" (no such thing) youtube
> video.  I want one...
>
> On Sun, Jul 9, 2023 at 6:50 PM Adam (synthDIY) <synthdiy at adambaby.com>
> wrote:
>
>> Robin Whittle did a lot of investigating in the 1980s with a related chip
>> found in Casios. Some of this may be of help.
>>
>> <preview.png>
>>
>> Casio-931-2006-06-17
>> <https://www.firstpr.com.au/rwi/casio/Casio-931-2006-06-17.txt>
>> Text Document · 90 KB
>> <https://www.firstpr.com.au/rwi/casio/Casio-931-2006-06-17.txt>
>> <https://www.firstpr.com.au/rwi/casio/Casio-931-2006-06-17.txt>
>>
>>
>> and some background here
>> Modifications to Casio musical instruments from the 1980s
>> <https://www.firstpr.com.au/rwi/casio/>
>> firstpr.com.au <https://www.firstpr.com.au/rwi/casio/>
>> <https://www.firstpr.com.au/rwi/casio/>
>> <https://www.firstpr.com.au/rwi/casio/>
>>
>>
>>
>> A
>>
>>
>>
>>
>>
>> On 10 Jul 2023, at 4:51 am, Benjamin Tremblay via Synth-diy <
>> synth-diy at synth-diy.org> wrote:
>>
>> I cannot find any pinouts for this chip.
>> I pulled if off the board (very carefully for me). Now I am trying to
>> guess which io pins scanned the keys and switches.
>> I can’t find a pinout for this chip anywhere. Octopart denies its
>> existence.
>> Not the same chip as the Casio VL and PT series monophonic keyboards, but
>> hopefully somebody got a bonus for cramming the VL-10 functionality into
>> this 28 pin DIP.
>>
>> Ben
>> _______________________________________________
>> Synth-diy mailing list
>> Synth-diy at synth-diy.org
>> http://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org
>>
>>
>> _______________________________________________
>> Synth-diy mailing list
>> Synth-diy at synth-diy.org
>> http://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20230709/e16ec336/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: GPN-2000-001313.jpeg
Type: image/jpeg
Size: 342509 bytes
Desc: not available
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20230709/e16ec336/attachment.jpeg>


More information about the Synth-diy mailing list