" MOTORS AND GENERATORS " DC MOTORS AND GENERATORS U.S. ARMY TRAINING FILM PART 1 14324

[@manhoot]

This film "generated" a great deal of interest in electric generation

[@kamakaziozzie3038]

Back in my day, we didn’t refer to electrical discharge between different pieces of equipment as “sparking”. We called it an “arc” or “arcing”.

[@RinksRides]

Ok, thanks.

[@richardjones3112]

Excellent presentation.

[@goliath991]

One in a million video ❤

[@huwzebediahthomas9193]

Diode bridges for DC, as in vehicles to charge the battery and car DC power supply.

[@lwilton]

When this movie was made, suitable diodes didn't exist. The only suitable high current rectifier in those days was mechanical -- a commutator. Alternators replaced generators in motor vehicles in the very late 1960s and early 1970s.

[@jamesslick4790]

@@lwilton Motorola developed the automotive alternator and Chrysler Corp. began using them in 1960. It took a decade for everyone else to adopt them. Fun fact: Some GM cars used the term "GEN" on the dashboard years AFTER alternators had been adopted!

[@RinksRides]

​@@lwilton rectifier tubes?

[@lwilton]

@RinksRides Something like a relatively high-power rectifier like a 5U4 is many times the size of a buzzer, draws a continuous 15 watts in filament power, would last about a year before being needed to replace, and can handle half the current of a 1N4004 silicon diode. Just not practical in this application. A better choice would have been to use a capacitor. Those were commonly used to suppress arcing across point contacts and to control inductive kickback.

[@ovidiovalladares3310]

A one year course in a half hour

[@uralbob1]

This is stuff I learned in the Navy as well as community college back in the ‘70s. I never used this knowledge much, but it’s been very good to have these basics in elec., electronics, and power generators. I’m surprised that I remember as much as I do (which isn’t a lot).

[@kamakaziozzie3038]

If this takes someone a year to learn they may be in the wrong profession

[@vurujak]

What year??

[@mikeadler434]

👍👍

[@huwzebediahthomas9193]

I know (almost) all about motors and generators, brushed or brushless induction.

[@that1electrician]

You don't know shit.

[@KarldorisLambley]

hold on chief I am just putting your medal in the post.

[@kamakaziozzie3038]

LMFAO 😂

[@CorvinusIratus]

Note to millennials and zoomers - these kinds of motors are still being used today.

[@KarldorisLambley]

i came of age in 1998, hence I am a millenial, and I am an electrical engineer. what is your point?

[@CorvinusIratus]

@@KarldorisLambley The point is to indulge in some inter-generational humor.

[@KarldorisLambley]

@@CorvinusIratus oh dear. i see now. i am not very god at that sort of thing. i am sorry. thanks for being polite.

[@CorvinusIratus]

@@KarldorisLambley 🙂

[@RinksRides]

Gonna go out on a limb here eagle eye, boomers need not flex their medals of honor. You may now resume yelling at the neighborhood hoodlums to quote "Get of my lawn!"

[@MusicSoundPlayer]

This all is wrong. It's all about pushing little balls through a tube.

[@kamakaziozzie3038]

You are 💯 correct!

[@RinksRides]

Yes, yes it is.