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| specifications of 3981 Lock-in Amplifiers |
| Low end frequency limit | 5.00 Hz |
| High end frequency limit | 20.00 kHz |
| Voltage Noise | |
| C.M.R.R. | |
| Dynamic Reserve | 30 dB in 1X LO DRIFT mode |
| Min. Time Constant | 3.33 msec |
| Max. Time Constant | 3.33 sec |
| Key Features of DL Instruments 3981l are |
| PC Lock-in Amplifier - The 3981B is a single-board lock-in that occupies one ISA slot in an IBM compatible PC (386/486/Pentium) and provides the features and functions of a standalone lock-in at a fraction of the cost. |
| Other Lock-in Amplifiers by DL Instruments |
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