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Resistors: Color code training for electronics technicians and repairers


Oh... I have such fond memories of cranking out Thévenin circuit analysis. Later on, I would come to understand that it's only really meaningful for DC steady state analysis. Anything with transients or with AC/RF running through the circuit was an entirely different kettle of fish ... and where all the fun was.

WWWWAAAY OT: Anyone else ever have the fun of doing Smith Chart analysis for transmission line and antenna impedance matching analysis?
 

Smith Charts: BTDT
 

Not in the A.F. but in the Army, '76 - '79 with an artillery unit, still using fire control first used in 1950's FADAC Computers, which was a "digital" computer, working out final trajectory of artillery, and, I'd bet they were also used bombers, large and small, etc.

My unit was a Nuclear capable TOW 155mm and 8" SP artillery unit.

Early scientific pocket calculators were used by some officers and senior NCO's to back check FADAC results but, Officially, the FADAC WAS the machine that gave the final answer.
 


Interesting in this context about the Boeing B-29, 1945:


Defending the Superbomber: The B-29’s Central Fire Control System

Aeronautics curator Christophere Moore explores one important advancement on the B-29 Superfortress: its central fire control system.
airandspace.si.edu
 
Were there computers in fighter planes in the 1960s?

Only if you had your slide rule in your pocket.
 
koraks said:
That's a perfectly fine method if its mechanically feasible.
Click to expand...

Back then, most circuits were discrete components, transistors, caps, resistors, etc. Plus they were on removable plug-in circuit cards. So it was easy to unsolder one lead from the back of the card after removing the card from the rack.
 

I learned

Bachelor boys rush our young girls but veronica goes wild only for silver or gold.
 
I use one of these old resistor guides, I wish the large electronics distributors like Mouser and Digikey
would offer these guides again, mine is decades old and card board .

 
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