| 2761. |
TR-117 FM广播站的天线及其合成器和传输线[1949/10]
|
| 2762. |
SE-105 声音设备的扩音器[1949/08]
This Standard provides definitions and methods of measurement for various electrical characteristics of microphones for sound equipment, to include field response, impedance, direc.. |
| 2763. |
REC-130 由紧密件和/或薄板制成的完全完成的箱子的外..[1949/07]
In this Standard, test procedures and limits are given for various attributes. |
| 2764. |
REC-133 结合了家用无线电接收机的磁性录音机[1949/07]
This Standard covers impedance and interconnection as well as sensitivity. |
| 2765. |
SE-101-A 声音设备的放大器[1949/07]
This Standard defines the various types, specifies minimum standards for terminal impedances, and gives methods of measurement for amplifier characteristics. |
| 2766. |
SE-104 声音设备的放大器的工程规范[1949/05]
This Standard outlines the presentation of measurement taken under SE-101-A. |
| 2767. |
SE-103 声音设备的扩音器[1949/04]
This Standard provides definitions and methods of measurement for various electrical characteristics of speakers for sound equipment such as impedance, efficiency, pressure-frequen.. |
| 2768. |
TR-107 FM广播发射机的电气性能标准[1949/03]
|
| 2769. |
TR-101-A 标准广播发射机的电气性能标准[1948/01]
|
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