It is based on the PH-3 Rob. As you say it does have four phase stages, but
I found 4, 8, and 12 to be enough. In fact any Boss pedal can be fitted, and
as many as eight could run off the 80's supply. But not if you want to keep
the panel original.
>From: blchrr@...
>Reply-To: yamahacs80@yahoogroups.com
>To: yamahacs80@yahoogroups.com
>Subject: [yamahacs80] Re: KSR mods
>Date: Mon, 01 May 2006 23:25:06 +0100
>
>Kent,
>
>Out of interest what model Boss pedal did you use for the phaser in your
>CS80 mods, was it a PH-3? You mentioned it had three modes, the PH-2 had
>two
>modes and the PH-3 has four modes...!
>
>Im still tyring to get over how bloody great those mods are...fantastic!!
>
>Regards,
>Rob.
>
> > Hi again,
> >
> > I do retolex the 80's myself but without removing the insides, thank god
>:)
> >
> > You are right about the string sounds on the 80 though. This is why
>Vangelis
> > used a VP330 so much in his China and Spiral albums. It is possible to
>get
> > quite a strong rich string sound from the 80 is you feed the VCO's
>directly
> > into a Moog ladder filter or an ARP 2600 one. We tried that here for a
>new
> > mod were working on, and the results were very promising indeed.
> >
> > The Unison mod on my 80 is controlled by how many keys are pressed. So
>one
> > key = 16 voice, but if you press 3 key down after it without lifting the
> > first key you get four voice on each key and so forth. You still have
>poly
> > glide in mono mode too. In other words, if you play a four note chord up
>the
> > top of the keyboard, let go and then go to mono mode and press just the
> > bottom C, the chord you played first glides down in four voice per note
>and
> > then joins at the bottom C in a earth shattering sixteen voice mono note
> > that can shatter a cows pelvis at four hundred yards.
> >
> >
> >>From: "erikfromhere" <erikfromhere@...>
> >>Reply-To: yamahacs80@yahoogroups.com
> >>To: yamahacs80@yahoogroups.com
> >>Subject: [yamahacs80] KSR mods
> >>Date: Mon, 01 May 2006 19:59:54 -0000
> >>
> >>Hi Kent,
> >>
> >>thanks for the explenation. 64 vca-ic's, that's a lot of rare ic's.
> >>I thought you would generate the extra lfo's digitally ;-)
> >>Personally, I don't need the seperate lfo-mod. However, I find it
> >>difficult to program nice string-sounds on the CS80. I don't even
> >>come close to the strings of an prophet, jupiter or OB-8 etc.
> >>There's allways too much or too little PWM. It just sounds to much
> >>modulated and not as a rich stringsound. I don't know why, is it the
> >>filter ? I guess (!) that having the PWM lfo phase-shifted for each
> >>voice seperatly could give nice results, maybe a simple circuit
> >>would do the trick ? Why would we need to have the PWM on all voices
> >>phase-synced, I don't anyway ?
> >>
> >>Can you explain the unison-mod a little ? Can you choose 2-,4- and 8-
> >>voice ? Can you play a 2-unison 4-voice polyphonic etc etc ?
> >>
> >>We would love to know what kind of mods can be done by you, maybe
> >>some of us are interested in your modifications and have them let
> >>done by you (as soon as you have your garden cleaned up).
> >>
> >>Do you have the CS80's re-tolexed by yourself or is someone else
> >>specialised in this ? I think it's a hell of a job, isn't it ?
> >>I suspect you have a crane to lift the complete circuits out of the
> >>case in one piece to give you room to retolex ;-)
> >>
> >>Please go on restoring and fixing these great machines !
> >>Erik
> >>
> >>
> >>--- In yamahacs80@yahoogroups.com, "kent spong" <kent_spong@...>
> >>wrote:
> >> >
> >> > Hi Erik,
> >> >
> >> > Yes that's right. The 16 IG00150 VCO's are for the VCO, VCF and
> >>VCA of the
> >> > LFO section and are also controlled by the after touch too. The
> >>only down
> >> > side to this mod is the 64 IG00151 VCA IC's it uses. The whole
> >>thing is
> >> > switched in and out on the LFO EXT point on the waveshape slider
> >>and also
> >> > swiches out on the EXT Modulation socket on the back. So there is
> >>no change
> >> > to the front panel of the 80 at all. However, I am working on a
> >>totally
> >> > faithfull replacment front panel for the 80 to restore one's that
> >>have seen
> >> > to much damage over the years. I want to keep these fantastic
> >>machines going
> >> > for as long as I can.
> >> >
> >> >
> >> >
> >>
> >>
> >>
> >>
> >>
> >>
> >>Yahoo! Groups Links
> >>
> >>
> >>
> >>
> >>
> >>
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
>
>
>
>
>Yahoo! Groups Links
>
>
>
>
>
>
>