|Brookdeal 401A Amplifier|
The Brookdeal type 401A is a compact high performance lock-in amplifier capable of recovering signals up to lOOdB below the noise level. Its design includes automatic circuitry which enables it to measure such signals without unnecessary setting-up procedures and also ensures continued correct operation during long period experiments. The 401A has an input dynamic range of lOOdB (10 voltage ratio), a low-noise input with lµV full-scale sensitivity and wideband operation from 1Hz to 50kHz. Reference channel facilities include a calibrated phase shifter with 90° and 180° pushbuttons and special input circuitry to reduce the effects of ground loops. Alternative plug-in power packs are available for differing requirements.
These manuals are available for the above equipment:
|Brookdeal -- 401A -- Service and User Manual|
|Manual Type||Service and User Manual|
|Size||11.61 Mbytes (12178745 Bytes)|
|Quality||Scanned document, all readable.|
|Upload date||30 March 2013|
|Downloads||187 since 30 March 2013|
1 introduction 1 2 specification 2 3 basic operating instructions 7 4 principles of operation 10 5 facilities and detailed operating instructions 24 6 applications 32 7 circuit description 39 8 parts list ^ 9 appendix I: instrument test procedure 56 appendix II: final test procedure
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