(under subclass 120) Subject matter wherein the electronic tube converter has a discharge control means.
(1) Note. Such control means may include a grid, igniter, or magnetic control means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
116, for electronic tube rectifier systems wherein the electronic tube has a discharge control means.
SEE OR SEARCH CLASS
315, Electric Lamp and Discharge Devices: Systems, appropriate subclasses for miscellaneous systems for supplying current to electronic tubes of the gas or vapor type where the electronic tube has a discharge control means. Many of these systems inherently operate to convert D.C. to A.C. and are closely analogous to the systems in this and the indented subclass. Note especially
229, where the system includes a plurality of tubes with discharge control means a commutating condenser is connected between the anodes or cathodes to cause the tubes to become conductive alternately (converts D.C. to A.C.). See subclasses 233+, 236+, and 237+ where a condenser is connected in the supply circuit of a gas or vapor tube having a discharge control means, the condenser causing the current through the tube to flow periodically similar to the current flow in a relaxation oscillator circuit. See subclasses 233+ where the tube has an auxiliary starting electrode (e.g., igniter) as the control means; subclass 236 where the control means is a magnetic means; and subclasses 237+ where the control means is an electrostatic (e.g., grid) electrode. See subclass 235 where the electronic tube has a plurality of cathodes or anodes and a discharge control means with a commutating condenser connected between the anodes or
cathodes to cause the discharge to alternate between the plural cathodes or anodes (converts D.C. to A.C.). See Lines With Other Classes, in the class definition for the line between Classes 315 and 363. 327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,
597, for miscellaneous tube circuits with grid control means.
