LDM

00:00 - Intro
00:56 - Teardown
02:34 - Reverse Engineering Part 1: Stepper motor driver
04:39 - Reverse Engineering Part 2: Power supply
05:30 - 60Hz quadrature generator board
06:30 - quadrature generator board test
06:39 - Final design and test

[@mattwietlispach7606]

The Lockheed test sticker ties this clock to an L-1011. There is a separate timebase that does exactly what your home brew panel does. A great many aoircraft clocks used this same timebase but with different indicators. Your timebase would run a clock from a 747, DC-10 and many other commercial aircraft of the 1970s/80s. The pinouts are usually the same between between different models of mechanical cockpit clocks made by Airpax and later companies. VERY nice teardown and reverse engineering, as always!

[@davidparrot4669]

encore une petite merveille , j'apprend beaucoup en ecoutant vos retro engenering ,un grand merci pour le partage c'est toujours un vrais plaisir.

[@dang25272549]

Thanks so much.

[@MoonWalker1010]

I have one too