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For some strange reason, one of the tapes doesn´t rewind unless I pick the keyboard a little bit up. I haven´t observed this behaviour until today
from the maintenance section of http//:members.aol.com/tronpage
2) KEY TENSION (or touch)
The key tension is determined by the 2BA Nyloc Nuts, retaining the key leaf springs at the rear of the keys. By turning each nut clockwise the key tension will increase and the key will rise. In manufacture, keys are adjusted by the above method until the key rises and just comes into contact with the bars above the keys. When all the keys are just touching the underside of the bar, a further 1/4 turn is applied. This is the standard key adjustment.
Norm