Charlie Rhodes

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Charlie Rhodes, 1971

Charles Wesley Rhodes (b. Aug 1, 1929 – d. Mar 20, 2018) was responsible for developing Tek's Television Products Group. He joined Tek in 1956.

From Tekscope V.3 No.6 Nov.1971:

Charlie attended the University of California at Berkeley and worked with the Columbia Broadcasting System for two years before coming with Tektronix in 1956.

His projects have been largely centered around his continuing interest in the field of television.

He has designed or directed the design of all of the vectorscopes, television waveform monitors and picture monitors introduced by the company since 1957.

He holds several U.S. and foreign patents relating to television and has published several technical papers.


Documents Authored by Charlie Rhodes

Document Page Class Title Author(s) Year Refers to
AX-3264.pdf Application Note A New NTSC Graticule for the 1480 Waveform Monitor (TV Products App Note No.20) Charlie Rhodes John Lauer 1975 1480 1485
Tekscope 1969 V1 N4 Aug 1969.pdf 2 Article Measuring Return-Loss Charlie Rhodes 1969 1A5 R140 528 R520 RM529
Tekscope 1971 V3 N6 Nov 1971.pdf 5 Article Measuring Distortions in the Television Signal Charlie Rhodes 1971

Products by Charlie Rhodes

Model Class Description Designers Introduced
X544 Oscilloscope prototype scope Phil Crosby Charlie Rhodes Henry Fritzler (not released)
526 Audio/Video NTSC Vectorscope Charlie Rhodes Ron Olson 1959
Z Plug-in Comparator preamp plug-in Charlie Rhodes Ron Olson 1960
527 Audio/Video Video Waveform Monitor Charlie Rhodes Ron Olson 1961
3S76 Plug-in Dual Channel Sampling plug-in Cliff Moulton Ron Olson Charlie Rhodes Walt Lowy Phil Crosby 1962

Components by Charlie Rhodes

Patents by Charlie Rhodes

Page Office Number Title Inventors Company Filing date Grant date
Patent US 3009094A US 3009094A Current control circuit Charlie Rhodes Tektronix Inc 1959-04-20 1961-11-14
Patent US 3534155A US 3534155A Measurement of characteristic of electrical signal by positioning measured portions of a corresponding pair of opposite phase signals in coincidence Charlie Rhodes Tektronix Inc 1967-10-05 1970-10-13
Patent US 3911478A US 3911478A Method and apparatus for processing test signals which convey information as to gain and delay distortions of T.V. systems Charlie Rhodes Tektronix Inc 1972-04-05 1975-10-07
Patent US 4092674A US 4092674A Video transmission stabilization system Charlie Rhodes David James Jurgensen Tektronix Inc 1976-10-06 1978-05-30
Patent US 4092666A US 4092666A Monochrome presentation of demodulated color signals Charlie Rhodes Phil Crosby Tektronix Inc 1976-12-10 1978-05-30