Hitherto devices for measuring power consumption in the audiofrequency range have all been of foreign manufacture. ... A schematic diagram of the low- frequency output power measuring instrument is shown in Fig.l. ... which is applied to the particular resistance is measured by an a.c. voltmeter consisting of a transistorised measuring amplifier T1-T3, ... Type Error, % range, Hz range n mm kg steps General Radio, USA 783-A Ap6 20-20, 000 0.2 mW-100W 2.5-20 000 203 X 457 X 177anbsp;...
|Title||:||Soviet Instrumentation and Control Journal|