I should clarify: when I say VCA and VCF, I mean Yamaha IG00151 VCA and Yamaha IG00156 VCF, as used in the CS series.
All of the organs I mentioned earlier have these CS-relevant VCA ICs, and the E30 has the CS-series VCF as well, but there is nothing else of use (Yamaha IC-wise) on the voice cards. Again, there might be something else in the digital card racks in the organs, but I never looked.
I should also mention that, as I recall, the VCFs in the E70 and E50 do not have the same number (IG00156) as the CS series, but for all I know, they might be similar to the IG00156 despite that. I don't think this is the case though...
best,
DT
--- In yamahacs80@yahoogroups.com, "scituate_mass" <sneakyflute@...> wrote:
>
> The E70 is LOADED with Yamaha CS series VCAs. It's got like 16 of them or something (or maybe there was just an 800 dollar bill in there...). Not to mention the selector buttons, which I think are the same as on the CS-80... but I don't know for sure.
>
> The E30 has quite a deal less of the VCAs and something like 6-8 VCFs.
>
> The E50 has a number of VCAs... maybe 8?
>
> Some of the more modern late 70s early 80s spaceship looking versions of the E70 have the VCF as well. Those EX models... not sure of the model numbers.
>
> I don't think any other CS specific chips are in there... and certainly not the voice cards, but it may be the case that there is some stuff that is useful in the digital boards as well...
>
> In my opinion, we should be killing these organs... not amazing CS-50s to fix our CS synths!!! I shed a tear every time I see a working CS-60 or CS-50 ripped apart for profit. Not that I haven't bought some of the parts (oops..).
>
> best - DT
>
>
>
> --- In yamahacs80@yahoogroups.com, The Old Crow <oldcrow@> wrote:
> >
> > They are not the same at all. E70 is digital tone generators and
> > analog filters. --Crow
> >
> > On 4/4/2012 7:58 PM, dzlvs8 wrote:
> > > I have a Yamaha CS50 and a just got a Yamaha E70 Electone organ. I know that the E70 has the same PASS architecture as the CS50/CS80. So does that mean that I could swap out a voice card in my CS50 with a voice card in the CS80??????
> > >
> > >
> >
>