John Addis
John Addis is an engineer who worked for Tektronix (now retired).
please add further information
Tek products
- designed the 1A7 (not the 1A7A, which was designed by Thor Hallen and is electrically similar to the 7A22). The 1A7 was Addis' first design at Tektronix.
- designed the 7A11 amplifier
- designed the 067-0681-01 pulse generator / calibration fixture
- designed the 155-0078-xx amplifier chip
- with Wink Gross, co-designed the vertical amplifier for the 485 (Ref 1)
- responsible for vertical system in the 7104
- with Wink Gross, co-designed the hybrid amplifiers for the 7104 (Ref 1)
- M377 preamplifier IC for 11000-series scopes (Ref 2, Ref 1)
Patents
Links
- John Addis, Good Engineering and Fast Vertical Amplifiers, in Jim Williams (Ed.), Analog Circuit Design: Art, Science and Personalities (1991), p.114 (Ref 1)
- P.Starič, E. Margan: Wideband Amplifiers (Ref. 2)
- A Tektronix oscilloscope that moved faster than light? The Oregonian, 23 Sep 2011. (Original no longer accessible, link via archive.org.), and the paper referred to in that article, Kirk T. McDonald, Radiation from a Superluminal Source
Photo
- John Addis photo @ vintagetek.org *Note: This link doesn't work with Chrome on OS X. Can we find an unencumbered photo we can add to the wiki locally? In general, all else being equal, locally hosted resources are preferable.