Hello everyone,
Another short report.
As previously mentioned we had a dead pickup on the 8ft E of the orch. keyboard, so today Jack removed a pickup IC from the Acc. keyboard and installed it on the Orch. Problem seemed to be cured, then it became intermittent again. Since we had also had the same note mis-behave on the solo keyboard last week, Jack surmised, correctly, that the problem might be in the test unit which allows for calibration of the keys using an LED for each key contact. After some work with an Ohm meter he found a loose connection in one of the cable connectors from the tester, fixing this cured the problem. So is this a case of one wrong makes two rights?
We have had a dead key in the Orch. keyboard for at least a year, the top note. Turned out to be a missing magnet on the pickup. Probably fell out of the shrink tubing. Again one was borrowed from the Acc and installed with a dab of hot hide glue. Problem fixed. So now we have two keyboards wth all notes working, keys leveled and the pickups set to the same key depressions. The Acc keyboard has been returned to Ross's shop. Downside is we have no general cancel button now.
While this was going on Ross went down to the basement and took out the two valve rods in the original factory built Wurly regulator and confirmed the lengths were correct on his manufacturing drawings. This arose because we found the two rods in the on stage regulator for the Kinura and Style D trumpet, built by Roy Parrish, were not the correct length. Ross replaced a broken wind line connector and he and Jack re-installed the regulator. Unfortunately in the process we somehow created a huge windleak between the regulator and the wind trunk, and we had to start over, so this will have to be taken care of next trip. Also the little dowel that holds the over travel dump valve in the original regulator, now on the RM tibia, had disappeared and will have to be replaced next trip.
Ross also got some green paint to match the walls of the theatre and painted a number of our wires and connectors so they will be invisible to patrons in the theatre. (And to Murray).
BTW he is showing that just released twilite moon movie at 10 pm tnite, sold out in hours at $12 each. He is showing the original version using our DVD projector, followed by the new film release. That little 150 watt bulb produces a really good picture, great resolution, and equal in brightness to his 2KW lamp in the film projector.
That is it for now. Not exactly a great day.
Salut
Ross
Thursday, November 19, 2009
Friday, November 13, 2009
Thursday Nov 12th at the OB
Just a quick update.
Gerry took the bottoms off the string and celeste chests and checked the magnets and for cold or chrystalized solder joints. Two magnets were replaced and a number of cold joints repaired. One bolt anchor was replaced as the bolt was cross threaded, and the anchor is now glued in place with epoxy. Notes that were cyphering had the magnet discs checked for dirt.
Ross stapled up the wires to the console in the corner, and will paint them green next trip. He also gooped up numerous holes in the drywall between the chambers, and in the stair well. This should help keep dirt out of the chambers. Shortly we can vacuum the entire organ.
Jack worked on the keyboards. It is pointless to try and tune the organ, or search for dead notes without reliable keyboards. The 8 ft E of the solo keyboard had a bit of rubbery yellow dirt on the end of the magnet, once this was removed all notes worked. The orchestral keyboard coincidentally also had an inoperative 8 ft E. This turned out to be a dead Hall effect pickup IC, it will have to be replaced. The key heights, and the trip points on both of these keybaords have been adjusted.
The Accompaniment keyboard was turning on all 12 notes of the bottom octave whenever any of these keys was pressed. Seems to be related to a cold or no solder joint on the pickup for the B key. Jack tried to repair it but the thru hole plating seems to be broken. The keyboard is here at my shop and I will take it to Dave next week. We also have one note in the pedals that needs adjusting. These wood screw adjusters keep working their way loose, maybe we will replace them with bolts with Nylock nuts.
Aside from all that, nothing else to report.
Salut
Ross
Gerry took the bottoms off the string and celeste chests and checked the magnets and for cold or chrystalized solder joints. Two magnets were replaced and a number of cold joints repaired. One bolt anchor was replaced as the bolt was cross threaded, and the anchor is now glued in place with epoxy. Notes that were cyphering had the magnet discs checked for dirt.
Ross stapled up the wires to the console in the corner, and will paint them green next trip. He also gooped up numerous holes in the drywall between the chambers, and in the stair well. This should help keep dirt out of the chambers. Shortly we can vacuum the entire organ.
Jack worked on the keyboards. It is pointless to try and tune the organ, or search for dead notes without reliable keyboards. The 8 ft E of the solo keyboard had a bit of rubbery yellow dirt on the end of the magnet, once this was removed all notes worked. The orchestral keyboard coincidentally also had an inoperative 8 ft E. This turned out to be a dead Hall effect pickup IC, it will have to be replaced. The key heights, and the trip points on both of these keybaords have been adjusted.
The Accompaniment keyboard was turning on all 12 notes of the bottom octave whenever any of these keys was pressed. Seems to be related to a cold or no solder joint on the pickup for the B key. Jack tried to repair it but the thru hole plating seems to be broken. The keyboard is here at my shop and I will take it to Dave next week. We also have one note in the pedals that needs adjusting. These wood screw adjusters keep working their way loose, maybe we will replace them with bolts with Nylock nuts.
Aside from all that, nothing else to report.
Salut
Ross
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