Equipment information:

Brookdeal 401A Amplifier
Model: 401A
Category: Radio, Communication
Group: Amplifier
Description: Lock-in 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
File name: Brookdeal-4311-Manual-Page-1-Picture
Manual Type: Service and User Manual
Pages: 118
Size: 11.61 Mbytes (12178745 Bytes)
Language: english
Quality: Scanned document, all readable.
Upload date:
MD5: 2418836c83afd963e7a0984a0bced6af
ed2kID: 10199750e9bc7983461fedfb8e994ef2
Downloads: 180 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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