PET music (Was: hmm, don't remember what the thread was originally :)

From: Ethan Dicks <>
Date: Fri Jan 4 17:03:23 2002

--- M H Stein <> wrote:
> Not sure what you're looking for here, hardware or software?

Software. I can reconstruct the hardware I think.

> Seems to me any S/W not using CB2 would require _some_ kind of special
> hardware, however trivial.

Yes. A connector, 8 resistors and a jack.

> At least 2 come to mind, the Petunia, and the MTU 4 voice/16 harmonics
> systems for
> both PETs and KIM/SYM/AIMs; is one of these what you're thinking of?

I don't recall. If I saw a picture of the original for the PET, I'd
recognize it.
> The cheap & dirty method was just a resistor ladder across the parallel
> interface as a D/A converter; might still have one of these & some S/W,
> but don't hold your breath, haven't looked at the CBM pile in ages.

That is exactly what I was mentioning below.

> Hmmm... just ran across an old ad for an accounting package for a
> KIM/SYM; wouldn't you
> have enjoyed being the data entry operator for that? Think I'd prefer
> even a Windows
> package...

> -------------Original Message----------------
> From: Ethan Dicks <>
> <snip>
> ObClassic: Does anyone have any software for making music on the PET
> with *other* than CB2 sound? I had a buddy with a clip-on user port
> music card - it was an 8-bit D-to-A like a Disney Sound Source. The
> PET shoved bytes out the user port and they appoximated music. I can't
> remember what it was called.

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Received on Fri Jan 04 2002 - 17:03:23 GMT

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