Niiice, I need a sequencer, even if it's a ZX Spectrum fed into a
Frequency Tracker. ;D
We need demos!!!
Frequency Tracker. ;D
We need demos!!!
--- In cgs_synth@yahoogroups.com, "data2action" <rdrake@...> wrote:
>
>
> Just got my CGS59 Programmer/Sequencer working, it is absolutely
> tremendous! here's a short build report and initial impressions:
>
> * i built mine w/ 8 stages, very similar layout to the picture of
> ken's prototype, w/ banana jacks. added 1/8" jacks to the summed outs
> and up/down inputs for compatibility w/ my other system.
> * building the boards was very straighforward, PC mounted pots
> helped A LOT (pots are mouser part #313-1510F-100K)
> * my front panel is pretty dense w/ parts and not much room
behind.
> the "A" boards had the taller components nicely arranged to provide
> clearance for jacks using the recommended spacing. i mounted the "B"
> board perpendicular to the panel towards the right, and had to remount
> some of the components on the edge towards the panel to make them
> lower-profile so as avoid interfering with jacks.
> * wiring all the buss lines between the boards was easier than i
> thought. once they're in place, it's a pretty monolithic assembly and a
> little tricky to work on... especially with mount-from-the-front banana
> connectors. i added nylon slip-on insulation on alternating buss wires
> to protect against shorts.
> * almost everything worked on first power-up, except the up/down
> sequencing and CPO pulse out. Ken was a great help in troubleshooting,
> eventually suggested replacing the 470pF caps on all A boards with a
> larger value--i used 1n. kind of a pain, because the cap was behind the
> buss wires, but i got it done, and it worked!
> * still havent debugged the CPO pulse, but the all event pulse
works
> fine so it's not critical. i'm thinking of bypassing the second pulse
> circuit entirely, and replacing it with a gate-out-on-key-press buffer.
> * Up/down inputs seem to be reversed, but that's not a
> problem--especially since my front panel isn't labeled. just a wire
> swap, in any case. i think i'm going replace one of those jacks for a
> spdt center-off switch, so there'll be one clock in and i can select up,
> down or off. also planning to add a debounced manual switch to provide
> a manual "advance one step" control.
> * i've only had a couple hours to play, but the possibilities of
> this thing are AMAZING. i'm using it now to set up "presets" for my
> self-running chaotic patches. i also set it up in combo with my
> sequential switch to get 32-step sequence--sweet. i can't tell you how
> excited i am about this thing! thanks, Ken!
>
> it pays to check Ken's site regularly... he adds new boards and doesn't
> always announce them. there's a brand new VCA up there now, for
> instance...
>
>
>
> happy noising,
>
> bbob
>
>
>
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>