From ches@qualcomm.com Mon Aug 27 13:46:08 2001
Subject:Re: Old CX3 Replacement chips

The BX-3 and CX-3 used top octave synthesis as you surmise, but they used
some weirdo non-standard chip as the top octave generator. I *think* this
linear device was also used in the PolySix.

Dave

At 08:12 PM 8/27/01 +0000, James.eaton@accenture.com wrote:
>--- In CloneWheel@y..., kcbass11@h... wrote:
> > That number seems familar to me. What do you know about this
> > chip? What does it do? How many pins? Is it an amp? Do you have
>it
> > in a schematic? I might can help. Casey-
>
>Always wondered what the DNA of the original BX-3/CX-3 was.
>Guessing that the BX-3/CX-3 used the technology of the day...
>
>- If it is the top octave generator/synthesiser (TOS) (e.g. M5024 or
>similar) then someone on the list might have one as they are very
>common in 70s and 80s instruments.
>
>- If it is one or more of the divider chips, then the same might
>apply but you could also rig up a board that plugs into the original
>IC sockets using 74 series TTL or 4000 series CMOS logic which are
>readily available and very cheap. I don't know about the
>resurrection electronics solution but it was probably this kind of
>set-up. I think you could use a CMOS 4024 for example. Anyone on
>the list used this stuff lately ?
>
>Question - if the CX-3 used an off-the-shelf TOS, did the
>approximated equally-tempered tuning affect the sound particularly ?
>
>Cheers
>
>James
>
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