Re: ram cards, sound cards

[Roy and/or Janet Miller <millers@inetnebr.com>]

Sheldon Simms wrote:

> I have a Ramworks III card with utility disk. Unfortunately it's about
> 5000 miles away. I looked on asimov for an image of the utility disk
> but didn't see one. Does anyone know where I can get one?
>
> Also, I have a few questions:
>
> Is there anywhere I can get technical information about the following
> cards:
>
> Apple Memory Expansion Card (not bankswitched)
> Mockingboard and/or Phasor

The Phasor produced 12 voices and 4 white noise channels. It used two 6522
chips and four AY-3 - 8913 sound chips. Evidently the sound chips each
produced 3 voices and 1 white noise, and AE hooked them up in parallel,
using the 6522's to communicate with the sound chips. There are also two
PAL chips, a ROM chip and a 74LSXXX chips (I can't read the number). Hope
this helps.

Roy

>
>
> Thanks.
>
> -Sheldon