摘要:
A high frequency power amplifier maintains an excellent linearity regardless of a fluctuation of a load impedance and is downsized. The high frequency power amplifier detects an AC voltage amplitude at an output terminal of a final amplification stage transistor, and suppresses an input signal amplitude of a power amplifier when the voltage amplitude exceeds a predetermined threshold value.
摘要:
This invention provides a method which is capable of strong and rapid-curing adhesion of various kinds of components including plastic components. Especially, this method can be industrially utilized with high efficiency in in-line adhesion assembly of various kinds of components, for example, plastic components, such as adhesion assembly of optical disks by adhering plastic plates together. Namely, this method comprises the steps of forming a face for effecting curing acceleration for an anaerobic curing adhesive on one or both of the adhering surfaces of the components to be adhered, coating the anaerobic curing adhesive on one or both of the adhering surfaces of the components, and laying one adhering surface on the other adhering surface of the components.
摘要:
A magnetic record medium comprises(A) a nonmagnetic substrate,(B) a layer consisting essentially of a ferromagnetic metal on at least one side of the substrate,(C) a layer containing carbon on the layer of (B),(D) a layer comprising a primary or secondary organic amine containing at least one substituent having a fluorinated hydrocarbon group at the end of the substituent on the layer of (C), and(E) a layer comprising at least one lubricant having a plurality or fully fluorinated hydrocarbon group on one end of the molecule and a functional group selected from the group consisting of --OH, --SH, --COOH, --COSH and --CONH.sub.2 on the other end of the molecule on the layer of (D).The magnetic record medium of the present invention has a good endurance reliability and does not cause deterioration of such performances as the CSS durability, head adsorption and still life at high temperatures and high humidities, even when the surface property is improved considerably by decreasing the height of surface protrusions for the purpose of improving the recording density.
摘要:
A measuring circuit device comprising a measuring circuit, a display associated with the measuring circuit for displaying data generated by the measuring circuit, a display test circuit for testing the display, a performance test circuit associated with the measuring circuit for actuating the measuring circuit to display predetermined reference measured data by the display, a switch for initiating operation of the device, a switch circuit which upon actuation of the switch actuates the display test circuit and the performance test circuit, and which in a predetermined time period, initiates a measuring operation by the measuring circuit.