Moog Rogue and Taurus II Controller

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benrebel
Posts: 3
Joined: Tue May 18, 2010 7:10 pm

Moog Rogue and Taurus II Controller

Post by benrebel » Tue May 18, 2010 7:14 pm

Hi,

I've got a Moog Rogue and a Taurus II Controller (no board) and I want to use (obviously) the Taurus to control the Rogue.
I don't really know how to do that. Anyone as any idea?

Thanks,


Ben

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sixofthebest
Posts: 41
Joined: Mon May 19, 2008 3:13 am

Re: Moog Rogue and Taurus II Controller

Post by sixofthebest » Tue May 18, 2010 8:24 pm

I believe it is written in T II manual.

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a2dconverter
Posts: 31
Joined: Sun Oct 05, 2008 9:51 am
Location: CANADA

Re: Moog Rogue and Taurus II Controller

Post by a2dconverter » Tue May 18, 2010 10:57 pm

Hey Benrebel..

I am very well aquainted with all of the Taurus Models (T1, T2, T3) and the Rogue which is closely associated with the T2.

You 'can' interface the Rogue and the T2 Pedalboard to essentially make a T2...

If you pull up the Rogue schematic you will see the Keyboard circuitry and how it interfaces with the Glide and trigger Circuits. The Rogue is where all of the mods are made; if you do it right, the only modification will be a punched hole for a 5-Pin DIN Jack in the Rogue chassis. Since the Rogue has 32 notes and the T2 has 18 notes, because of scale differences, you won't be able to use both the Rogue keyboard and the T2 pedalboard at the same time without tuning and scale problems.
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On the Rogue keyboard there are two contacts per key. The keyboard is an arrangement of 100 Ohm resistors used to divide up the output of the Keyboard Scale Trim circuit into discrete voltages. A different voltage for each note corresponds to 1V/OCT and those voltages are switched by one of the keyboard contacts as each key is pressed. The other keyboard contact switches a common +12 VDC to the trigger circuit as each key is pressed.

Here are the outputs to/from the keyboard on Connector P1
PIN 1 = RED WIRE = +12 VDC Feed to Keyboard Trigger Contacts
PIN 2 = BLUE WIRE = CV BUSS Bar to Glide Circuit - 1V/OCT
PIN 3 = VIOLET WIRE = Keyboard Voltage Divider Common (Lo C)
PIN 4 = ORANGE WIRE = Keyboard Voltage Divider Feed (Hi F)
PIN 5 = GRAY WIRE = TRIGGER BUSS Bar to Trigger Circuit
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There are two ways that you can utilize your T2 pedalboard to trigger your Rogue...

The First Option requires you to disconnect the Rogue Keyboard and create a new 5-wire jumper cable from the Rogue PCB to a 5-Pin DIN jack that you will have to install on your Rogue by using a 5/8" steel chassis punch.

Before any modifications, perform the Factory alignment on the Rogue.

The 5-pin DIN will allow you to interface the Rogue to the T2 Pedal board via a 5 PIN DIN Cable (You need all 5 wires in the cable). The Rogue keyboard has a small white 5-pin plastic connector that can easily be unplugged from the PCB to disconnect the keyboard. Find a similar connector with the same pin spacing and wire it left to right as follows,(Red,Blue,Violet,Orange,Gray), to the 5-PIN DIN connector as follows...

Looking at the back of the connector in the Rogue and Starting at 9:00 and going CW to 3:00 (The numbering skips pins and starts renumbering - 1,4,2,5,3). Here is the Pinout of the 5-PIN DIN and coresponding wire colors.

5-PIN DIN Connector for T2 Pedals
PIN 1 = RED WIRE = +12 VDC Feed to Keyboard Trigger Contacts
PIN 4 = GRAY WIRE = TRIGGER BUSS Bar to Trigger Circuit
PIN 2 = ORANGE WIRE = Keyboard Voltage Divider Feed (Hi F)
PIN 5 = BLUE WIRE = CV BUSS Bar to Glide Circuit - 1V/OCT
PIN 3 = VIOLET WIRE = Keyboard Voltage Divider Common (Lo C)

The T2 pedalboard is an exact copy of the Rogue keyboard except that it has less contacts. Both keyboards switch CV and Trigger voltages to the Mainboard circuitry. Since the Rogue has 32 notes, and the T2 has only 18 notes, you will have to drop some voltage before you get to the T2 keyboard. This can most easily be attained by installing an inline 5.1K resistor on the Orange wire.

Once you've made these mods, connect the 5-Pin (all 5 wire) DIN cable between the Rogue and the T2 keyboard and you may have to recheck the alignment in the Rogue and make adjustments to the keyboard scale as required to attain proper note scaling with the new T2 pedalboard.
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The Second option still requires you to punch a 5/8" hole in the Rogue chassis for the 5 Pin DIN connector. In the end you will have a Rogue with MIDI IN and a T2 pedalboard with MIDI OUT.

Before any modifications, perform the Factory alignment on the Rogue.

Purchase a MidiJack from http://www.synhouse.com for intallation inside the Rogue. The MidiJack is a MIDI to CV/ Trigger converter that will give you a MIDI IN on the ROGUE and provide 1V/OCT CV and Trigger to the Rogue Mainboard. The Installation notes are on the Synhouse website.
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An alternate for the MidiJack, for the Midi to CV/Trigger, is the Midi-Implant by Roman Sowa...

http://www.midi-hardware.com/midimplant.html

.....cool
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Now, you need to modify your T2 pedalboard with a MIDI OUT. This is relatively easy if you purchase a pre-built Switch-to-MIDI converter from j-omega.

http://http://www.j-omega.co.uk

The j-omega PTM-1 Switch-to-MIDI converter, once mounted and connected in parallel with the T2 keyboard contacts, will provide MIDI OUT for each note as you press on the pedalboard. You will have to jumper the 3 wires from the j-omega MIDI OUT to the existing 5-Pin DIN connector on the T2.
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An Alternate for the j-omega PTM-1 is the Highly Liquid MIDI CPU

http://highlyliquid.com/midi-controllers/midi-cpu
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After the modifications, connect the T2 Pedalboard to the Rogue using a standard MIDI cable,(not all five wires are required), and check the note scaling. Adjust the Rogue tuning to get everything properly tuned.

In order to get really low notes from the Rogue, you may have to turn the Pitch wheel all the way down and fine-tune with the Tune Pot.

With the addition of MIDI jacks on both devices, you can use the T2 pedalboard to trigger other MIDI instruments and you can trigger the Rogue from external keyboards. Best of Both Worlds.

Have fun...it's a lot of work and you won't approach the sound of the T1 or T3, which sound very different from the Rogue/T2!

seeya

Joe
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Moog Taurus I #1708 (1972)
http://stagecue.com/t1.html

Moog Taurus I (1981) Custom Table-Top x MIDI IN
http://stagecue.com/t3.html

Moog Rogue #2040 (1981) x MIDI IN x internal PS
http://stagecue.com/rogue.html

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