Al Zimmerman

Henry Allen “Al” Zimmerman (b. August 5, 1937 in Sabetha, KS – ?) got his BS in Electrical Engineering from Harvard in 1959 and MS in Electrical Engineering from UC Berkeley in 1961. He started at Tektronix in July 1961. He led the Sampling Group at Tektronix starting in the early 1960s.

Personal

Al Zimmerman was married to Emily Jo Berry and they had three kids: Berry in 1958, Bruce in 1960, and JoLynne in 1964. They divorced around 1983. He remarried Eileen Harrington in 1986. They divorced around 1997. He remarried Lila Lee around 1999. They divorced around 2010.

Links

Products by Al Zimmerman

Manufacturer	Model	Description	Designers	Introduced
Tektronix	7S11	Sampling plugin	George Frye • Al Zimmerman • Gene Cowan	1969
Tektronix	7T11	Sampling sweep plugin	George Frye • Al Zimmerman • Gene Cowan	1969
Tektronix	S-3260	Automated semiconductor testing system	Jane Friedlander • DeWayne McGaa • Bob Webb • Fred Kawabata • Ken Jacobs • Al Zimmerman • Cal Hongel • Chuck Edgar • Tom Charters • Jan Ransom • Mike Hathaway • Steve Brice • David Suryan • Connie Reynolds	1973
Tektronix	7T11A	Sampling Sweep Unit	George Frye • Al Zimmerman • Gene Cowan	1986

Components by Al Zimmerman

Patents by Henry A Zimmerman

Page	Title	Inventors	Assignee	Filed	Granted	Links
Patent US 3359429A	Trigger generator circuit having synchronized astable input oscillator	Henry A Zimmerman	Tektronix Inc	1964-03-23	1967-12-19	Sampling • 3T77 • 3T77A
Patent US 3350576A	Trigger countdown circuit which is armed and triggered by different portions of the same trigger pulse	Henry A Zimmerman	Tektronix Inc	1965-01-29	1967-10-31
Patent US 3558930A	Jitter-free triggering method and apparatus	Jim Knapton • Henry A Zimmerman	Tektronix Inc	1968-03-15	1971-01-26
Patent US 3771056A	Display baseline stabilization circuit	Henry A Zimmerman	Tektronix Inc	1971-07-30	1973-11-06

Documents Authored by Al Zimmerman

Document	Page	Class	Title	Author(s)	Year	Refers to
062-1172-00.pdf		Book	Circuit Concepts: Sampling Oscilloscope Circuits	John Mulvey • Al Zimmerman • Joe Weber • John Bookout	1970	Sampling
062-1244-00.pdf		Book	Measurement Concepts: Time-Domain Reflectometry Measurements	James A. Strickland • Al Zimmerman • Gordon Long • George Frye	1969	Time domain reflectometers • 3S7 • 3T7
Service Scope 46 Oct 1967.pdf	7	Article	Random Sampling - A New Way of Fast Pulse Display	Al Zimmerman	1967	3T2
Service Scope 52 Oct 1968.pdf	2	Article	The State of the Art in Sampling	Al Zimmerman	1968	S-1 • S-2 • S-3 • S-4 • S-50 • S-51 • 285 • 3S1 • 3S2 • 3S5 • 3S6 • 3T2 • 3T5 • 3T6 • 3T77A • 568 • 230
Tekscope 1970 V2 N1 Feb 1970.pdf	2	Article	Measuring Jitter with a Sampling Oscilloscope	Al Zimmerman	1970	Sampling • 7T11 • 7S11