i was thinking of getting a sequencer started soon too. after looking
around this is what i kinda decided on --
- minimal cgs28 module containing just the basics - clock in/out,
reset jack/switch, up/down jack/switch, master (mix) gate out,
cascade in/out (custom add-on), LEDs, 8 gate enable/disable switches,
and then the individual 8 gate outputs on a multipin connector like
an MTA or (maybe better) DIN plug.
- individual gate module containing the multipin input and 8 gate
outputs. the gate enable/disable switches could go on here too.
- cgs42 containing the multipin input, 8 CV pots, mix CV in and out.
breaking stuff out like this means you can have multiple channels of
basic "drum sequencing" using just the minimal switch module. then if
you need 8 discrete gate outs or CV stuff you build the breakout
modules. i reckon you could get 4 minimal switch modules in 3U,
retaining all the discrete interface stuff (maybe normalised so that
one clock in drives all, etc) and that's a 4x8, 2x16, or 1x32 drum
sequencer for cheap.
the only hack required really is the cascade support on the cgs28.
the 4516 supports it, just need to cut the trace grounding the
cascade in pin and wire the in & out pins to a cgs56 board having
input comparators and output buffering etc.
around this is what i kinda decided on --
- minimal cgs28 module containing just the basics - clock in/out,
reset jack/switch, up/down jack/switch, master (mix) gate out,
cascade in/out (custom add-on), LEDs, 8 gate enable/disable switches,
and then the individual 8 gate outputs on a multipin connector like
an MTA or (maybe better) DIN plug.
- individual gate module containing the multipin input and 8 gate
outputs. the gate enable/disable switches could go on here too.
- cgs42 containing the multipin input, 8 CV pots, mix CV in and out.
breaking stuff out like this means you can have multiple channels of
basic "drum sequencing" using just the minimal switch module. then if
you need 8 discrete gate outs or CV stuff you build the breakout
modules. i reckon you could get 4 minimal switch modules in 3U,
retaining all the discrete interface stuff (maybe normalised so that
one clock in drives all, etc) and that's a 4x8, 2x16, or 1x32 drum
sequencer for cheap.
the only hack required really is the cascade support on the cgs28.
the 4516 supports it, just need to cut the trace grounding the
cascade in pin and wire the in & out pins to a cgs56 board having
input comparators and output buffering etc.
>It should work fine. Use 100k pots and a single set of buffer transistors.
>No need to have a set of buffer transistors per row of pots.
>
>Ken
>