A
Anonymous
Guest
Roger hat vor kurzem folgende Auskunft bzgl. der Mod-Möglichkeiten des Q119 in seinem Forum kundgetan.
--- In synthesizerscomgroup@yahoogroups.com, "grsymes" <grsymes@...>
wrote:
> Is it possable to create individual outputs for each step on the
> Sequencer. What other mods have people made to this Sequencer?
Fun discussion guys. DIY is the story of my life, I'm just not very
good at incorporating this slippery concept into my biz.
I designed the Q119 without ever using another Sequencer. Basically,
I prefer the clean-brain method of design to see what I can come up
with without any bias. But it sometimes causes me to leave out
goodies
Picking my own road seems easier than trying to figure out
what someone else did. This can lead to a dark alley but also a nice
meadow.
The Q119 has a 20-pin dual row header exactly for trigger outputs and
expansion. The pinout is:
2 +5V
19 Gnd
4 NC
12 Master Gate
13 External Oscillator input
1 -B1 Bank 1 enable
3 B1 A0 - Bank 1, Address bit 0
5 B1 A1 - Bank 1, Address bit 1
7 B1 A2 - Bank 1, Address bit 2
9 -B2 Bank 2 enable
11 B2 A0 - Bank 2, Address Bit 0
13 B2 A1 - Bank 2, Address Bit 1
15 B2 A2 - Bank 2, Address Bit 2
20 -B3 Bank 3 enable
18 B3 A0 - Bank 3, Address Bit 0
16 B3 A1 - Bank 3, Address Bit 1
14 B3 A2 - Bank 3, Address Bit 2
10 Gate 1
8 Gate 2
6 Gate 3
These bank outputs can go directly to 74HC138 demultiplexers.
The 138 has inverted outputs so you'll have to reinvert if you want
positive trigger outs. Put 1k current limiting resistors on the
outputs to protect the chips when someone plugs in a 10vpp signal by
accident. Should be able to get 24 jacks on a double wide panel.
They will be 100% duty cycle. You can gate them with a gate output to
get a variable duty cycle controlled by the gate width pot.
There is no 'easy' way to get trigger INPUTs, but one way to cheat
would be to use a micro to generate a quantity of quick of pulses to
the ext osc input based on the current stage and the desired stage to
jump it over. Not sure what the max freq could be, probably 1khz or more.
The neurons curn, but peace will come....
Feel free to wikify this.
Back to visual basic and my newly arrived copy of "Going For The One"
with practice session tracks.
Roger
Ich steige leider nicht so richtig durch! Kann mir das vielleicht jemand näher erläutern?
Thanxx
--- In synthesizerscomgroup@yahoogroups.com, "grsymes" <grsymes@...>
wrote:
> Is it possable to create individual outputs for each step on the
> Sequencer. What other mods have people made to this Sequencer?
Fun discussion guys. DIY is the story of my life, I'm just not very
good at incorporating this slippery concept into my biz.
I designed the Q119 without ever using another Sequencer. Basically,
I prefer the clean-brain method of design to see what I can come up
with without any bias. But it sometimes causes me to leave out
goodies
Picking my own road seems easier than trying to figure outwhat someone else did. This can lead to a dark alley but also a nice
meadow.
The Q119 has a 20-pin dual row header exactly for trigger outputs and
expansion. The pinout is:
2 +5V
19 Gnd
4 NC
12 Master Gate
13 External Oscillator input
1 -B1 Bank 1 enable
3 B1 A0 - Bank 1, Address bit 0
5 B1 A1 - Bank 1, Address bit 1
7 B1 A2 - Bank 1, Address bit 2
9 -B2 Bank 2 enable
11 B2 A0 - Bank 2, Address Bit 0
13 B2 A1 - Bank 2, Address Bit 1
15 B2 A2 - Bank 2, Address Bit 2
20 -B3 Bank 3 enable
18 B3 A0 - Bank 3, Address Bit 0
16 B3 A1 - Bank 3, Address Bit 1
14 B3 A2 - Bank 3, Address Bit 2
10 Gate 1
8 Gate 2
6 Gate 3
These bank outputs can go directly to 74HC138 demultiplexers.
The 138 has inverted outputs so you'll have to reinvert if you want
positive trigger outs. Put 1k current limiting resistors on the
outputs to protect the chips when someone plugs in a 10vpp signal by
accident. Should be able to get 24 jacks on a double wide panel.
They will be 100% duty cycle. You can gate them with a gate output to
get a variable duty cycle controlled by the gate width pot.
There is no 'easy' way to get trigger INPUTs, but one way to cheat
would be to use a micro to generate a quantity of quick of pulses to
the ext osc input based on the current stage and the desired stage to
jump it over. Not sure what the max freq could be, probably 1khz or more.
The neurons curn, but peace will come....
Feel free to wikify this.
Back to visual basic and my newly arrived copy of "Going For The One"
with practice session tracks.
Roger
Ich steige leider nicht so richtig durch! Kann mir das vielleicht jemand näher erläutern?
Thanxx
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