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What Do You Want to Learn Next? Share Your Suggestion by Replying below!
G'Day,
Wow you knowledge of television signal standards is impressive.
Television repair was an add on course in my 1981 final year of Electronic Technology. Fixing them was a skill I wasn't good at. More like overwhelmed when I got the back of the TV. That 25K high voltage tube stem sticking out the back was intimidating.
I did get some pleasure out of building a cable TV descrambler. I found it fascinating the decoding was carried on the step of the horizontal flyback pulse. Shades of stenography.
Sean
Cheers Sean!
Fixing old TVs was full of Extra High Tension - No Yoke-ing!
What's just as scary was that many TVs had live chassis.
Even LCD screens that use fluorescent backlighting (even in Notebook computers) have High Tension circuits.
I remember well. There was this oscope back in the day. A Hickock I think. And the intensity knob well had HV on it and my other hand was on the case. Well I got tossed! Upon unplugging it from the wall and opening it up. You could see a metal shaft running to the back of the scope. The next day I brought in a ceramic flex coupler and installed it by cutting the shaft in two and then shorting the one side. I know I was not in High School yet maybe in 7th or 8th grade. From then on I learned the lesson: Only one hand on the gear the other in my pocket! No jewellery or rings while on the bench.
This was a great tutorial, the topic was very informative, not too dry reading and it kept me interested.
(I didn't fall asleep) The examples were simple and relevant. I liked how you placed the multiple guess questions at the end.
All in all, very well done.
Keith James
Eco-Racers Ltd.
Really good point! What is "Standardization of a sensor" mean anyway?? Reality anything that the manufacturer is willing to put on a piece of paper.
Thank G-d, that is not the way the military, NASA, aerospace (PMAed stuff) does it! All of the above specs are traceable back to Boulder Colorado, then to the CAL-LAB and each unit has its own paperwork which goes back to Boulder.