Accession Number : AD0650614

Title :   DEVELOPMENT OF LINEAR POWER TUBES.

Descriptive Note : Interim development rept., 17 Nov 66-16 Feb 67,

Corporate Author : EIMAC SAN CARLOS CALIF

Personal Author(s) : Sain,William H.

Report Date : 20 MAR 1967

Pagination or Media Count : 56

Abstract : Two Phase I (200 - 500 watts PEP output) UHF tetrodes were made and tested at full power output. Third and fifth order intermodulation distortion product ratios were -40 db or better at more than fifty per cent plate circuit efficiency. Distortion calculations from the grid-plate transfer curves showed that the optimum (for minimum distortion) zero signal plate current was above the desirable level. Experimental Phase I tubes designed to operate at lower zero signal plate current and higher plate efficiency are under construction. Tests of an EIMAC linear tetrode, the 4CX1500B, showed that the linearity of this type is strongly dependent on the quiescent plate current and, to a lesser extent, on the screen grid voltage. (Author)

Descriptors :   (*TETRODES, ULTRAHIGH FREQUENCY), (*BEAM POWER TUBES, LINEAR SYSTEMS), MODULATION, DISTORTION, PERFORMANCE(ENGINEERING), AMPLIFIERS

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE