Accession Number:

AD0659009

Title:

C-BAND AND X-BAND DUAL FUNCTION OSCILLATORS.

Descriptive Note:

Quarterly rept. no. 4, 1 Mar-31 May 67,

Corporate Author:

GENERAL ELECTRIC CO OWENSBORO KY TUBE DEPT

Personal Author(s):

Report Date:

1967-09-01

Pagination or Media Count:

16.0

Abstract:

The triode development phase has continued with major effort now being directed toward X-band operation. The bonded heater-cathode structure is being used exclusively for current investigations. Grid structures still being studied are an interlaced crosswire design and a photoetched support frame design. C-band performance with good power output, I-f frequency, and tuning range has been demonstrated using tubes incorporating the latter named grid structure. This design also provided a clean spectrum with very low frequency modulation. Electrical tests on Oscillator DC-55 were made with very good results. Cross checks between Oscillator DC-55 and Oscillator DC-51 revealed no significant differences. Another oscillator Oscillator DC-56 was designed and built for the rapid evaluation of tubes. Oscillator DC-56 features spring and finger contacts to the tube in order to facilitate rapid insertion and removal of the tube from the circuit. In the electrical tests of Oscillator DC-55, those tubes which showed little output on the grid excitation test, produced negligible frequency modulation of the r-f output. A check of the effect of load impedance variations was made by introducing a VSWR of 1.51 and varying it through all phases. Author

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE