ASR 33 repair tips sought.

When you press a key, you relase a lever at the right side of the keyboard. This rotates (front end rises), turning the well-known H-plate that links the keybaord to the typing unit. This, in turn, releases the trasnmitter clutch. At the end of the transmit cycle, the H-plate is forced back again by a cam on the trasnmit shaft in the typing unit, which turns the trip lever in the keyboard back again. At which point this lever has to be latched by a catch in the keyboard (this is the catch that's released when you press any key). Well, if that catch is sticking, or there's an incorrect adjustment somewhere in the transmit trip linkage, then the thing might will not latch up every time, casuing the trasnmit shaft to make 2 revolutions, thus sending extra characters. -tony