TNS-1995型UHF调谐器是上海电视调谐器厂使用引进生产线生产的机械式电视调谐器.它由输入回路、高频放大级、混频级及本机振荡级组成,采用四联可变电容器进行调谐.调谐范围为13～57频道.它可与TNS-1994A型VHF机械式调谐器配合,以接收1～57频道的黑白或彩色电视节目. 由于电视机中UHF调谐器所接收的频道为13～57频道,其相应的频率范围为470～870兆赫.在这 TNS-1995 UHF Tuner is a mechanical TV tuner manufactured by Shanghai TV Tuner Factory using imported production line, which is composed of input loop, high-frequency amplification stage, mixing stage and local oscillation stage. It adopts quadrifilar variable capacitor Tuning range of 13 to 57. It works with the TNS-1994A VHF mechanical tuner to receive monochrome or color television programs from 1 to 57. The channel the UHF tuner in the television receives is 13 to 57 channels, the corresponding frequency range of 470 ~ 870 MHz