Summary
A laboratory made apparatus for long-time recording of small voltages is described. Care is taken to reduce zero-drift. Some details concerning the construction and adjustment of the equipment are discussed.
References
Kelen, A., Appl. Sci. Res. B4 (1955) 278.
Scroggie, M. G., Electronics24 (12) (1951) 142.
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Kelen, A. A photoelectric compensator with good zero stability. Appl. Sci. Res. 4, 285–288 (1955). https://doi.org/10.1007/BF02316493
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DOI: https://doi.org/10.1007/BF02316493