[Coco] Speech Systems Symphony 12 & Piano attachment

[RETRO Innovations]

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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