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> General radio 1238 detector
General radio 1238 detector
Powers up, otherwise untested.
The 1238 Detector is designed for difficult applications. Covering a frequency range from 10 Hz to 100 kHz and has 100 nV full-scale sensitivity, gain of 130 dB. Consisting of a high-impedance low-noise preamplifier, a tuned amplifier, a compression amplifier, and two phase-sensitive detectors.
Three panel meters provide the indications: one displays the magnitude of the input signal and two others simultaneously display its in-phase and quadrature components. The reference signals can be rotated continuously from 0 through 360 to ensure that the phase meters respond independently to the components of significance to you, for the most rapid bridge balances or signal analysis.
* 10 Hz to 100 kHz frequency range
* 100 nV full-scale sensitivity
* Designed for a wide range of difficult applications
