@article{oai:ir.kagoshima-u.ac.jp:00004547,
 author = {武石, 泰亮 and TAKEISHI, Taisuke and 中島, 昌利 and NAKASHIMA, Masatoshi},
 journal = {鹿児島大学工学部研究報告, The research reports of the Faculty of Engineering, Kagoshima University},
 month = {Sep},
 note = {An amplification of the low-level DC voltage is studied. The paper describes charactcristics of cascode difference amplifiers, which have characteristics of low noise, high voltage-gain and low drift. 
Experiment is made on a circuit using 12AX7. Results show good agreement with the theoretical analysis. Linearity of the device is tested.},
 pages = {17--21},
 title = {カスコード差動増幅器について},
 volume = {10},
 year = {1968}
}