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在批林批孔运动的促进下,我站群众性双革活动蓬勃发展,试制成功晶体管声幅井下仪。它与电子管仪器相比较,结构简单轻便,占用缆芯少,绝缘可靠,使用、维修方便,有发展前途。仪器的电路结构晶体管声幅井下仪的电路原理图如下:发射部分的电路与 CSG-681型电子管仪器相同,但结构上将可控硅管、密封纸介电容和两个电阻均装在镍片发射探头内,再密封在带底座的充油的铜皮盒内。盒子尺寸为
With the promotion of the campaign of “criticizing the proletariat and the movement of the bogus hole,” I stood for the vigorous development of mass leather activities. Compared with the tube instrument, it has the advantages of simple and light structure, less occupied core, reliable insulation, convenient use and maintenance, and promising future. The circuit structure of the instrument The circuit diagram of the transistor amplitude of the downhole instrument is as follows: The emission part of the circuit and CSG-681-type tube instrument the same, but the structure of the SCR, seal paper and two resistors are mounted on the nickel sheet Launch the probe, reseal it in a crafted oil-filled copper box. Box size is