| 摘要 |
A floating deck modulator circuit for the modulation of an electron tube and particularly adapted for x-ray tubes employing a control grid. The modulator circuit utilizes a pair of high voltage electron tubes serially connected through a biasing network for providing a bias voltage between the grid and cathode of the tube. A single pulsing, or keying, circuit is directly connected to one of the electron tubes and coupled to the other electron tube by a transformer which insulates the circuit from high voltage. The modulator circuitry is adapted to be enclosed within an x-ray tube housing, and coupling of the modulation circuitry through the housing to a remote control unit is provided by a modulated light beam which accomplishes coupling across a high difference of potential.
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