Vintage Synth Repair

It is a local reference voltage created by the slight voltage drop 
off R1 (upper left corner).  The other two points connect to that.  --Crow

On 2/17/2011 2:57 PM, Quazimodo wrote:
> Hi guys,
>
> I have a question about the Moog 901B Osc.
>
> Looking at the schematic here:
>
> http://www.freeinfosociety.com/media/images/4142.jpg
>
> I see the +12v, -10v and -6v points noted - but I am also seeing three points marked +11.5v
>
> Where was this +11.5 derived from originally?
>
> If you look at the connector strip pin-out on the bottom right - there is no +11.5v coming in..!
>
> Cheers,
> TOM