Iet Genrad Gr Model 1521-b Graphic Level Recorder Produces Permanent Ink Tape

US $240

  • Apopka, Florida, United States
  • Oct 29th
IET GenRad GR Model 1521-B Graphic Level Recorder produces a permanent ink record of the level of ac voltages, at frequencies from 7 cps to 200 kc. The trace, which is proportional to the logarithm of changes in input level, and hence linear in decibels, may be plotted as a function of time, on translucent chart paper. When the recorder is set up to drive the dial of an external oscillator, it automatically plots level vs frequency, yielding a permanent record with minimum time and effort. The translucent paper permits superposition of one recording over another for comparison. Recording width is four inches. Fast writing speed in conjunction with a wide servo bandwidth enables the Type 1521-B to record rapidly changing signal levels from the outputs of various electrical and electroacoustic devices. Writing speed is high enough for most reverberation-time measurements. The Type 1521-B can also be used as a de recorder, with an input-voltage range of 0 to 0.8 volts.

Directions

Similar products from Chart Recorders & Loggers

People who viewed this item also vieved

By clicking "Accept All Cookies", you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts.

Accept All Cookies