IBM 7220 Instruction Manual page 64

Dsp lock-in amplifier
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Chapter 5, FRONT PANEL OPERATION
5-24
Oscillator Amplitude
The amplitude of the instrument's internal oscillator may be set, using this control, to
any value between 1 mV and 5 V rms with a 1 mV resolution. Adjustment is faster if
use is made of the Active Cursor control - see section 4.1.04.
Figure 5-22, Internal Oscillator Amplitude Control
DAC 1
This control sets the voltage appearing at the rear panel DAC1 output connector to
any value between +10 V and -10 V with a resolution of 1 mV. Adjustment is faster if
use is made of the Active Cursor control - see section 4.1.04.
Figure 5-23, DAC 1 Output Control

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