Picked this up at the swap meet to use for peaking rf circuits in radios. FET high impedance input, like a vtvm. Found problems caused by bad calibration pot.
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https://www.youtube.com/watch?v=cn_dnIKzxko
Police were looking for someone, (not sure why) and circled for about an hour while a house to house search was conducted. The perp was never found and the search ended.
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https://www.youtube.com/watch?v=TjolErUh15A
Concorde experimental aircraft F-WTSA lands in the USA for the first time at the Dallas Fort Worth Airport. Flight originated in Caracas, Venezuela and lasted about 3 hours 33 minutes. Note one side of the aircraft painted for British Airways, the other for Air France, the two airlines that would eventually operate the Concorde commercially in 1976.
Part 2: https://youtu.be/KEZgsGH1wd8
See web site below for other interesting details about this aircraft.
https://www.heritageconcorde.com/f-wtsa-102
Big Time Credits to my Awesome Dad for capturing this significant moment in aviation history with Super 8 film.
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https://www.youtube.com/watch?v=2pFZ6ckPmrQ
A 1940's electromechanical dc voltage converter for powering vacuum tube electronic equipment in a mobile or airborne environment.
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https://www.youtube.com/watch?v=VCdkTzBc5CM