The GE technical description is a thing of beauty. I love this part: Before use, the system should be calibrated with a gyro-controlled Sine-Wave Director, th

The GE technical description is a thing of beauty. I love this part: Before use, the system should be calibrated with a gyro-controlled Sine-Wave Director, the output of which should be of the cathode follower type. Note: If only Cosine-Wave Directors are available, their output must be first fed into a Phase Inverter with parametric negative time compensators.