[sdiy] TI 76477 Space Invaders sound chip detailed analysis

[james murray]

Hi Ole,

I think your links are in a private playlist? They're not working on my end
at least.

Best
James

On Wed, May 23, 2018 at 2:23 PM, Olav Martin Kvern <okvern at ix.netcom.com>
wrote:

> Colleagues,
>
> In the early 1980s I built a battery powered synth using the SN76477. I
> put up posters around Seattle with schematics showing how to build and use
> this folk instrument. I called it "Crude Instrument."
>
> https://soundcloud.com/user4909220/crudeinstrument-1
>
> https://soundcloud.com/user4909220/crudeinstrument-2
>
> https://soundcloud.com/user4909220/crude-instrument-3
>
> It had several clocks to connect to the select pins--by doing this, you
> could get several sounds at once. The controls were a joystick, a trigger
> button, three or four multi-pole switches, and several potentiometers. It
> was never quite clear what sound(s) you were going to get, but it was often
> interesting. And always crude.
>
> It appeared in a few shows around the area. I have no idea where it is now.
>
> Thanks,
>
> Ole
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