Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
H03K17/54—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements of vacuum tubes
G—PHYSICS
G11—INFORMATION STORAGE
G11C—STATIC STORES
G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
G11C19/20—Digital stores in which the information is moved stepwise, e.g. shift registers using discharge tubes
G11C19/205—Digital stores in which the information is moved stepwise, e.g. shift registers using discharge tubes with gas-filled tubes