Natoinal bureau of standards noise comparator
C. Greenhow · Transactions of the IRE Professional Group on Electron Devices · 1954
This paper is concerned with the measurements of the power spectrum of fluorescent tubes in the frequency range between 6-10 kmc. It has two main purposes: to discuss the experimental set-up used for calibrating fluorescent tubes to be used as secondary noise standards; and to study experimentally the law of available noise power of a discharge tube.