i want to know how the remote control of tv (transmitter) work and what is its circuit and how does the tv response to it
The first were ultrasonic, you could shake your car keys in front of the set, it would change channels.i want to know how the remote control of tv (transmitter) work and what is its circuit and how does the tv response to it
Yea, wasn't that cool?The first were ultrasonic, you could shake your car keys in front of the set, it would change channels.
Max.
A childhood friend had one. The remote control button whacked a metal rod to create ultrasonic vibrations. No battery needed.The first were ultrasonic, you could shake your car keys in front of the set, it would change channels.
Max.
Until the dog ran by, and it's metal chain collar changed the channels and volume.Yea, wasn't that cool?
Right, it was actually a hollow cylinder of the correct diameter that 'rang' at the prescribed frequency.A childhood friend had one. The remote control button whacked a metal rod to create ultrasonic vibrations. No battery needed.
Thanks for the correction. It has been a _very_ long time since I saw the remote control -- 1962 maybe.Right, it was actually a hollow cylinder of the correct diameter that 'rang' at the prescribed frequency.
Max.
So your username is somewhat of a misnomer?Back then I could hear these things in their normal range, but not when the freq upshifted; it made diagnosis very quick.
Google for RC5 - its one of the most common protocols.i want to know how the remote control of tv (transmitter) work and what is its circuit and how does the tv response to it
Not when a lorry applied its air brakes outside!Yea, wasn't that cool?
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