Thursday, October 14, 2010

Organ Progress

Here's the organ set up on sawhorses in my shop at home, where I construct most of my exhibits for Mindport. The cover is off the keyboard console and in the process of being varnished. On the floor, just to the right of the organ is the blower box, which includes an air pressure regulator. This keeps the pressure to the pipes more or less constant no matter how many keys are pressed. On top of the box is an air filter (the round black thing) to keep dust and debris out of the organ's valves and pipes. That black hose going into the right side of the keyboard console is the main air hose, bringing air from the blower/regulator to the "wind chest" where all the key valves reside. The smaller hoses from the valves are now all connected to the pipes, which I've temporarily tuned up. A couple valves had to be revamped because they leaked, but everything seems to work OK  now, and I've even been hacking out a few tunes with my very inadequate keyboard skills.

Next job is to install set screws on the tuning slides at the top of the pipes so they can be locked in position once they're set to the correct pitch. At the moment, the slides are held in position with tape. Installing the set screws involves drilling holes in the slides, tapping them, and screwing in set screws with locking nuts. This job that will be done concurrently with applying oil finish to the pipes, which all will take a couple days. The final task is to design and construct a table to hold The pipes and the keyboard console. Then the organ will be ready for its public debut.

Kevin Jones

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