REFERENCES
- Davidson , I. B. 1934 . “Double Wave Device for Use with a Cathode Ray Oscillograph” . Journ. Sci. Inst. , xi : 359
- Woodruff , L. F. 1935 . “Multi-element Operation of the Cathode Ray Oscillograph” . Elect. Engineering , liv : 1045 – 1047 .
- George , Heim , Mayer and Roys . 1935 . “Kathode Ray Oscillograph for Observing Two Waves” . Elect. Engineering , liv : 1095 – 1100 .
- Hughes , H. K. 1936 . “Thyratron Selector for Double Trace Cathode Ray Oscillograph” . Rev. Sci. Inst. , vii : 89 – 92 . February
- Garceau . 1935 . “Duplex Cathode Ray Oscillograph” . Rev. Sci. Inst. , vi : 171