[GreenKeys] TWX/TELEX

[steve bennett]

 In my first electronics class in vocational school the teacher gave us some analogy to explain a resistor.A light bulb went off in my head and I added my own analogy for capacitor and inductor.Teacher stopped me "not so fast son...you are taking it too far"
It wasn't until years later when I enrolled in electrical engineering I learned I was right all along and the vo-techteacher didn't know what he was talking about.The math that describes the behavior of a capacitor is the exact same math that describes the behavior of a mechanical spring and the math that describes the behavior of an inductor is exactly the same math that describes mechanical inertia.
-Steve
    On Thursday, April 15, 2021, 12:11:24 PM EDT, Roy Morgan <k1lky68 at gmail.com> wrote:  
 
 The “Battery Discharger” reference reminds me of a design offered quite some time ago for a "Fuse Tester”.

It had a line cord, push button labeled “Press to Test", a fuse holder and an indicator lamp (neon type I am sure) with the label “Fuse Bad”.  After inserting the fuse to be tested the user followed the instruction under the push button “Press to Test”.

The fuse got huge current, it blew, and the lamp illuminated.

Roy

> On Apr 14, 2021, at 12:14 PM, W2HX <w2hx at w2hx.com> wrote:
> 
>> The same instructor drew a diagram on the blackboard with a battery symbol powering a transformer. I guess he didn't know the difference between AC & DC.)
> 
> Oh, he knew the difference alright. He was just drawing the circuit diagram for a battery discharger.
> 
> 73 Eugene W2HX\

Roy Morgan
K1LKY since 1958
k1lky68 at gmail.com
Western Mass





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