[sdiy] Oberheim 4-voice issues (SEM, keyboard)

[ChristianH]

On Thu, 21 Apr 2011 07:19:48 +0100 Oakley Sound <oakleylist at btinternet.com> wrote:

> The most common cause of SEM VCOs going high frequency that I have found 
> is, in order of likelihood:
> 
> 1. Dead 3086 (we know it's not that though)
> 2. Dead timing cap
> 3. Dead temp co
> 
> Although, since both VCOs are dead this does seem to indicate another 
> possibility. Having two dead temp cos (or dead polystyrene caps) does 
> seem somewhat unlucky.

Isn't the 3086 shared between both oscillators in the SEM...?

Christian