A transistor amplifier for registration of the low current part of a Langmuir probe characteristic Back to all publications Publication date 1 January 1965 DOI http://dx.doi.org/10.1088/0950-7671/42/6/307 Reference P.J. van Deenen, T. Matitti and A. Vermeer, A transistor amplifier for registration of the low current part of a Langmuir probe characteristic, J. Sci. Instrum. 42, (1965)