[Coco] Speech Systems Symphony 12 & Piano attachment

[Brian Blake]

Jim - thanks for that! That certainly makes sense. As I recall, Speech
Systems was well known for using existing components for new devices.
Obviously the device I had wasn't the piano interface, since it had a DIN
connector. But the board was very similar to this one. in the link you sent.

On Tue, Aug 12, 2025 at 2:08 PM RETRO Innovations via Coco <
coco at maltedmedia.com> wrote:

> On 8/12/2025 10:43 AM, Brian Blake via Coco wrote:
> > Hi Rob, thanks for sharing this info.
> >
> > Is there any way you could take some pic of the cartridge PCB - top &
> > bottom? I'd like to get it documented and maybe try to reproduce it. I
> have
> > a feeling items like these weren't sold in great numbers, and the
> > documentation is non-existent.
> >
> > The irony here is, now that I know what some of these items are, I'm
> about
> > 90% convinced I had the cartridge at one point, and sold it along with
> all
> > of my CoCo stuff in 2017. I had a long white Speech Systems cartridge
> with
> > a single DIN port on it - I think it was 5 pins. I had no idea what it
> was
> > for then...
>
> I *think* this is the cartridge folks are referring to:
>
>
> https://www.facebook.com/groups/2359462640/posts/10162805383202641/?__cft__[0]=AZUliL9M8eYMGwoHCa3zbvScy1p73RMJSuzybYYHuKRfcXSvBoh-hAEsiINz7xQiqpUBrV_fNadY9bIfqwEnYYgnx5jDzR7QzZ9AMchsoF5xUS-L36UB9TKet4kWU-hcCQQ3ATza2LhT3yuHCfW_w7Ltfa0NAg_QUszA_L_YaHwzsEw2zoJqafa7Z04-uD3fqoDBZO32Q-13zDhvj5w3lzin&__tn__=%2CO%2CP-R
>
> (Yes, I know it's FB, but I don't think this list accepts pics...)
>
> It looks like a Speech Systems Stereo Pak that has been partially stuff
> (PIA and decoding in place, but not R2R ladders or audio outputs)
>
> Jim
>
>
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>
>
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Ohioan by birth, Floridian by the grace of U-Haul and a bad economy...
--------
Sarcasm is the body's natural defense to stupidity.