i finished the pitch mod! i couldn't find anything flexible yet
abrasive enough to floss down through the board, so i ended up using
an x-acto blade to slice up through it from the back. i didn't even
think of removing the ic to cut the traces; is this possible i
guess it's just soldered on, huh next, it was too difficult to
solder wires to the individual pins, so i used a pin vise to drill
tiny holes in the clock pin traces. then i stuck wires up through
the holes and soldered them to the traces. now there is no
mechanical stress on the pins. i highly recommend this method over
gluing the pins in place. this way, if anything goes wrong you can
still access them. i was able to mount the oscillator board on the
bottom left corner of the board that has all the panel controls,
using the middle and leftmost screw holes. the toggle switches
sounds like a good idea, i wish i had room for them.



--- In tr-707@yahoogroups.com , "acousmatique" <acousmatique@y...>
wrote:

> I understand how this sounds like it'd be easier, but my guess is

that removing

> the IC and replacing it when you've finished might be easier.

Anything you

> thread through those holes to "floss" with is going to tend to

bend upward,

> rather than down into the PCB.
>
> I have been waiting to do this mod until I got some cyanoacrylate

and epoxy,

> so as not to pull the ICs pins off. Luck has it that I scored

these tonight! I intend

> to make the built-in clock toggle-switch activated, with a switch

and pot for the

> new clock. This will also facilitate complex clock rates by

combination, which I

> think sounds quite neat.
>
> Lastly, I have not been able to make a small strip of voltage

controlled clocks

> as of yet. Since I have more mods I want to do than I can fit in

the case, I am

> going to get a second 7X7 and mount the top case on a metal

enclosure I've

> got. This way I'll have room to really get down with CV clock,

trigger outs for

> each step, replacement ROMs, and other handy things.
>
> Off to the garage!
>
> CJ
>
>
> --- In tr-707@yahoogroups.com , "gregory zifcak"

<foleymachine@y...> wrote:

> > i'm getting ready to do the pitch mod again to my current 727

and it

> > occurs to me that it would be much more structurally secure to

leave

> > the clock input pins connected to the board, and cut all the

traces

> > that connect to them. the problem is, there are traces that

connect

> > to the pins from under the ic.
> >
> > there are 2 holes in the board at the ends of the clock pins.

i'd

> > like to thread something through and up underneath the pins, and
> > then floss across the traces that go under the ic to cut through
> > them. but i don't know what to use. some kind of rough metal

wire

> > would be really good. like rough fishing line or something. any
> > ideas
> >
> > i'll post details when i get it done.
> >
> > thanks,
> > greg