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pulse divider, help question

pulse divider, help question

2003-09-12 by spgjmf

hello,

this is my first post to the cgs group.
I have a cgs pulse divider which I have just completed, but it is not
functioning corredtly.

power is +/- 12 vdc
I have correct Vcc at each chip. clk voltage is seen at the correct
pins too.

the problem is the divid outputs are all high regardless of the clock.
clock is a +5 square wave. oh, the logic and inverts work.
I have 12v at the base of each tranistor .

do I need to tie the rest pin hign or low or ...?

All I want is the divison - not interested in rest function.

any suggestions?

little bio - live in oakland ca, usa have been building and using
modular synths since 82 ... have a serge panel from late 80's and
several salavged serge modules waiting to go in a new panel with cgs
modules...
into eno like music and installation type soundscapes ....drift and
loooong sweeps and drones - interested in senors which environmental
sensors to contrll analog models. worked on film sound and pop music
too. day job is unix sysadmin....

thanks for any ideas,
jeff

Re: pulse divider, help question

2003-09-12 by spgjmf

hi,
after a bit of sleep I see I had a chip in backwards.
the divider lives, seems to work.
now need to hook it up to the organ drum board I salavged....

jeff
Show quoted textHide quoted text
--- In cgs_synth@yahoogroups.com, "spgjmf" <spgjmf@h...> wrote:
> hello,
>
> this is my first post to the cgs group.
> I have a cgs pulse divider which I have just completed, but it is
not
> functioning corredtly.
>
> power is +/- 12 vdc
> I have correct Vcc at each chip. clk voltage is seen at the correct
> pins too.
>
> the problem is the divid outputs are all high regardless of the
clock.
> clock is a +5 square wave. oh, the logic and inverts work.
> I have 12v at the base of each tranistor .
>
> do I need to tie the rest pin hign or low or ...?
>
> All I want is the divison - not interested in rest function.
>
> any suggestions?
>
> little bio - live in oakland ca, usa have been building and using
> modular synths since 82 ... have a serge panel from late 80's and
> several salavged serge modules waiting to go in a new panel with
cgs
> modules...
> into eno like music and installation type soundscapes ....drift and
> loooong sweeps and drones - interested in senors which
environmental
> sensors to contrll analog models. worked on film sound and pop
music
> too. day job is unix sysadmin....
>
> thanks for any ideas,
> jeff

Re: pulse divider, help question

2003-09-12 by sasami@hotkey.net.au

Hmm... lucky the chip survived!

Ken

>
>hi,
>after a bit of sleep I see I had a chip in backwards.
>the divider lives, seems to work.
>now need to hook it up to the organ drum board I salavged....
>
>jeff
>
_______________________________________________________________________
Ken Stone sasami@...
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>

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