OldSynths

Hi,

I recently acquired an Octave cat (non SRM).

My Cat has really horrible oscillator stability. It squirms while holding notes. Sometimes it even will plummet down several octaves like a slow glide, or as if following an envelope release.
It definitely is way out of tune across the keyboard.
The question is whether you think a tuning will fix my Cat or if there is likely something more serious is involved?

I’m preparing to clean and tune the unit as I write this.
The Cat is completely disassembled. It appears that it may never have been opened and/or re-tuned before.

Thanks for your time,
Adam

Hi,

I recently acquired an Octave cat (non SRM).

My Cat has really horrible oscillator stability. It squirms while holding notes. Sometimes it even will plummet down several octaves like a slow glide, or as if following an envelope release.
It definitely is way out of tune across the keyboard.
The question is whether you think a tuning will fix my Cat or if there is likely something more serious is involved?

I’m preparing to clean and tune the unit as I write this.
The Cat is completely disassembled. It appears that it may never have been opened and/or re-tuned before.

Thanks for your time,
Adam

Check out the first Lateral Force CD at:

http://cdbaby.com/cd/lateralforce

Watch for the latest one this summer!

I own two Cats, both of which have suffered from tuning instability. On the
first it was a matter of thoroughly cleaning the j-wires and contact bus
bars as well as replacing the keyboard bushings. On the second I found that
resoldering the 2 ceramic caps that hang from the bottom of the board helped
with tuning stability...go figure! They occasionally wander a bit
especially in the first half hour or so, but since the repairs, they've been
pretty solid.

The Cat Fixed.
Finally took it in to my tech. Turned out to be the locking paint on trimmers. That plus
pots cleaned and a tuning results in an amazingly stable, fun cool synth.
Thanks for all the suggestions here.
-A

--- In oldsynths@yahoogroups.com, Adam McKinley <adam.mckinley@...> wrote:
>
> Hi,
>
> I recently acquired an Octave cat (non SRM).
>
> My Cat has really horrible oscillator stability. It squirms while holding
> notes. Sometimes it even will plummet down several octaves like a slow
> glide, or as if following an envelope release.
> It definitely is way out of tune across the keyboard.
> The question is whether you think a tuning will fix my Cat or if there is
> likely something more serious is involved?
>
> I¹m preparing to clean and tune the unit as I write this.
> The Cat is completely disassembled. It appears that it may never have been
> opened and/or re-tuned before.
>
> Thanks for your time,
> Adam
>