Device for observation of output characteristics of transistors
Abstract
Semiconductor diodes and triodes are widely used in the practice of geophysical instrumentation, which allow a significant increase in efficiency and a reduction in the size and weight of the equipment. However, semiconductor devices, having high performance qualities, at the modern level of production technology are characterized by a scatter of parameters. Therefore, when designing critical circuits of equipment it is necessary to select diodes and especially triodes according to their electrical properties. The analysis of their output characteristics gives the most complete idea of the amplifying properties of transistors. Since the process of taking characteristics point by point is labor‑intensive, there are devices that allow visual observation of the output characteristics of transistors on the oscilloscope screen. Such devices are made in the USSR and abroad in various modifications depending on the range of solved tasks and the required accuracy of observations. Relatively universal units have a complex electronic circuit, simpler ones, as a rule, provide the possibility of only qualitative assessment of amplifying properties of transistors ...
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References
- Konev K. A., Preobrazhensky N. I. An attachment to the electronic oscilloscope EO-7 for visual selection of transistors. , Sovetskoe radio, issue 7, 1961.
- Konev K. A., Preobrazhensky N. I. Attachment to the EO-7 oscilloscope for visual selection of transistors by their characteristics. , Izv. Leningr. elektrotekhn. in-ta im. V. I. Ul'yanova (Lenina), vol. 51, 1963.
- Sonin V. K., Sonin E. K. Devices for visual adjustment of radio amateur equipment. Gosenergoizdat. , Massovaya biblioteka, vol. 483, 1963.
- Chernikov A. I. Testator-characteriograph of semiconductor triodes. , Sovetskoe radio, vol. 8, 1962.