Hysteresis in vacuum tube oscillators

✍ Scribed by Lauriston S. Taylor

• Book ID: 104126924
• Publisher: Elsevier Science
• Year: 1927
• Tongue: English
• Weight: 180 KB
• Volume: 204
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(27)91574-9

✦ Synopsis

IN AN earlier investigation, 1 it was shown how, when a blocking condenser and resistance were placed in the grid circuit of a vacuum tube oscillator, the oscillations were broken up into groups which for convenience are called " zules." It was pointed out that such a circuit was capable of operation in two states, namely, one of continuous and one of intermittent oscillation. The actual state of oscillation is determined chiefly by the constants of the oscillatory circuit in which oscillation is maintained by the vacuum tube. Thus for any given value of the grid condenser and by-pass, the two states can be produced by changing the inductance or capacity in the oscillatory circuit. An empirical relation was obtained for the zule frequency F in terms of these constants. Thus