Building Creative Content

   The only AGO standard document I could find on the internet is the one from Wicks.  It has this diagram on it.   I built the instrument based on 29 1/2" to the top of the second keyboard.  Sitting down at it, only a midget would be able to fit on an instrument with this measurement.  As a result, I had to add some 3" stilts to the legs of the build.  It's a bit of a happy accident, these make the instrument more stable, and looks better. But if you're building a console, I'd recommend 30 1/2" to the top of the BOTTOM keyboard as the standard.  

 Stop Action For the St John's practice organ, I'm using some old LRT3 (lighted rocker tablets)  actions that I had for my old organ before I upgraded to moving drawknobs.  These were pre-USB design from MIDIWorks.  The existing interface was cumbersome, and not well documented, so I decided to reverse engineer the rockers and repurpose an existing board from my system to integrate it with the rest of the key and stop scanning system. The LRT's were simply a diode isolated 4x8 matrix of switches, and a serial shift register to drive the LED's behind the rockers.  The 8 on/off switches and 8 LEDs are duplicated into 2 groups.  Because there are only a single row of 2.54mm pins, it's easy to put a ribbon cable connector on it.  I have a board design (same as in the previous post) where I can allocate 8 port pins on one connector for the D bus and 16 port pins on another connector for the C interface, one set of 16 rockers on the odd pins and one set of 16 rockers on t