Original (plexiglas) VPI tube:
I've owned two VPI 16.5 machines. Once the suction tube was adjusted properly I've not had any issues with vacuuming.
First, be certain the tube is installed so that the slot opening ends just at the lead in on an LP. Certainly it should not extend beyond that but should cover the entire grooved area.
Second, when viewed from the outside end the slot should be positioned at 185 degrees on the 360 face. That provides optimum suction per VPI.
When vacuuming I note the place on the edge of the label for reference when I engage the vacuum. After two revolutions I shut off the vacuum and the tube will remain in contact with the LP for nearly one more revolution before lifting up. At that point the record will be completely dry so all I need do is blot up any droplets from the label area if present.
I fail to see how any replacement for the stock tube could do better than that.
I've owned two VPI 16.5 machines. Once the suction tube was adjusted properly I've not had any issues with vacuuming.
First, be certain the tube is installed so that the slot opening ends just at the lead in on an LP. Certainly it should not extend beyond that but should cover the entire grooved area.
Second, when viewed from the outside end the slot should be positioned at 185 degrees on the 360 face. That provides optimum suction per VPI.
When vacuuming I note the place on the edge of the label for reference when I engage the vacuum. After two revolutions I shut off the vacuum and the tube will remain in contact with the LP for nearly one more revolution before lifting up. At that point the record will be completely dry so all I need do is blot up any droplets from the label area if present.
I fail to see how any replacement for the stock tube could do better than that.