Pertinent Pertinent was an Australian monthly periodical edited by Leon Batt. Contributors included Ian Mudie, Kylie Tennant, William Hart-Smith, the artist Rosaleen Norton and the poet Gavin Greenlees, Dulcie Deamer, Yvonne Webb, George Farwell, Marjorie Quinn, Marien Dreyer, and Robert Crossland Started in 1940 the magazine ceased publication in 1947.
Part of the Microprocessors glossary: Transistor-transistor logic (TTL) is a digital logic design in which bipolar transistor s act on direct-current pulses. Many TTL logic gate s are typically fabricated onto a single integrated circuit (IC).
Thyristor or silicon controlled rectifier is a multilayer semiconductor device and is similar to the transistor. Silicon controlled rectifier consists of three terminals (anode, cathode, and gate) unlike the two terminal diode (anode and cathode) rectifier.he silicon controlled rectifier or thyristor is represented by the symbol as shown in the figure. Silicon Controlled Rectifier. Silicon controlled rectifier is also a unidirectional device as it conducts only in one direction.