Basics of Electricity-1970's lessons

Thread Starter

ISB123

Joined May 21, 2014
1,236
Hello, while I was browsing YouTube I stumbled upon some vintage videos about basics of electricity and thought it should be nice from me that I share them around since they don't have much views and explain stuff pretty clearly,videos were made by USAF and they cover Ohm's law.


The person that uploaded those videos has more videos about electronics,mostly vintage videos way back from 1920s to 1980s.
https://www.youtube.com/playlist?list=PLAA9B0175C3E15B47

Voltage:
Current:
Resistance:
 

Hypatia's Protege

Joined Mar 1, 2015
3,228
Electrons will leave the negative charge and travel to the positive charge
While I suppose we should be content that the instructor got (electron) flow 'direction' right -- I daresay the phenomenon of conduction is just a tad more complex than that!:p

Great stuff!:D -- Vintage instructional material is always a fun watch:):):)

Best regards
HP
 

Hypatia's Protege

Joined Mar 1, 2015
3,228
But it gets better (Re: the second video)! --- As per the 'Sarge'; Seems the holes in the paper were created by mere ballistic action of electrons!?:confused::eek: --- Priceless!:D:D:D

@ISB123 -- If multiple likes per post, per user were possible you've have 100 from me alone!:):):) --- Thus I have escaped the ennui of an otherwise deadly-dull Tuesday afternoon!:cool:

Sincere kudos!
HP:)
 
Last edited:

#12

Joined Nov 30, 2010
18,224
Is there any danger this is going to supersede my, "Ohm's Law for Noobies" dissertation? :D
Just kidding. There are so many ways to explain the most simple basics, and different people respond to different approaches. Some find my fanciful explanation to be effective, some will find the "military" method effective.
Personally, I marvel at the many methods I had to experience in order to accumulate a working theory and effective methods to understand the ways electronics work...and I'm still not finished!
 

takao21203

Joined Apr 28, 2012
3,702
Is there any danger this is going to supersede my, "Ohm's Law for Noobies" dissertation? :D
Just kidding. There are so many ways to explain the most simple basics, and different people respond to different approaches. Some find my fanciful explanation to be effective, some will find the "military" method effective.
Personally, I marvel at the many methods I had to experience in order to accumulate a working theory and effective methods to understand the ways electronics work...and I'm still not finished!
well you need to do electrical stuff with some discipline. Even when you do a sloppy temporary or private wiring, keep it reasonable. Do it properly if you can and it makes sense.
 

Hypatia's Protege

Joined Mar 1, 2015
3,228
Here is one that I see isn't on the playlist. It has been posted here before and I found it to be pretty cool (starts at 1:15)

Similiarities of Wave Behavior 1959 Bell labs
Very nice!:) --- It is truly refreshing to see presentations (such as this) wherein intellect and genuine curosity is assumed of the viewer!:cool:

FWIW I feel a similar treatment of solitons would make an excellent 'sequel'!:)

Best regards
HP
 

KL7AJ

Joined Nov 4, 2008
2,229
While I suppose we should be content that the instructor got (electron) flow 'direction' right -- I daresay the phenomenon of conduction is just a tad more complex than that!:p

Great stuff!:D -- Vintage instructional material is always a fun watch:):):)

Best regards
HP
Except that in a vacuum tube, conduction is VERY straightforward. :)
 
I must have missed something in 50+years of electronics... What the hell is a soliton? Is it like a Radiotron?

Ps: I was trying to make fun of what I thought was a typo, but a soliton exists.
For the benefit of interested parties:

Here's a pleasingly quantitative treatment of the subject!:)
http://www.scholarpedia.org/article/Soliton

And yes! Electrical and electromagnetic analogs are both manifest and of importance in engineering (optical wave-guides [a.k.a. fiber-optics] being a notable example...)

Best regards
HP:)
 

nsaspook

Joined Aug 27, 2009
12,998
For the benefit of interested parties:

Here's a pleasingly quantitative treatment of the subject!:)
http://www.scholarpedia.org/article/Soliton

And yes! Electrical and electromagnetic analogs are both manifest and of importance in engineering (optical wave-guides [a.k.a. fiber-optics] being a notable example...)

Best regards
HP:)
Soliton like waves have been used in advanced radar for years. It's typically not called that in the RF spectrum (chirping is a common term) but the non-linear (using strontium and barium/strontium nonlinear or other materials lumped element transmission lines) networks has been used to compress normal spectrum RF CW pulses into compressed pulses for now primitive Doppler radar systems since the 1960's and with directed energy systems and ultra-wide band radars starting in the 1980's.
 
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