Old post from when I first joined Zoklet, thought it would be relevant here.
I got bored today, and decided to finally do something with an old TV I had laying around with broken volume buttons.
Following
this guide, I ended up a working, showy blue oscilloscope.
Pictures of how I got there:
What I started with
Trying to discover which coil was horizontal/vertical. The torn apart IDE hard drive was 13GB in size and is destined to become a Tesla turbine at some point.
Closeup of the last picture. Alligator clips for the win!
Looks like I've got something...
I hooked up my Ipod to a amp I removed from a broken boom box. Works well to adjust the thing
Just playin' some music...
Sawtooth wave in Audacity.
The small amp and makeshift dummy deflection coil.
All it really involved was some wire switching, and finding a replacement deflection coil to act as a dummy (This tv had a protection circuit). This took the most time, as every coil of wire I had simply got too hot and had strange effects on the wave.
I ended up using the degaussing coil I got out of an old dell monitor I took apart, this worked perfectly. The resistance was almost exactly the same as the coil it was actually supposed to go to.
I'm just screwing around in Audacity looking at square/sine/sawtooth waves in different frequencies at the moment, pretty fun to play with.
Altogether it was pretty easy to make, looks cool, and has impressed a few friends. I think my work here is done...
Comments
Try hooking up both the x and y coils to the audio amp. By playing diferent frequencies you can make lissajous figures.
Never heard of the term wave tube before. I know an oscilloscope is for precision...Hmm. Learn something new every day.
I might try hooking the other coil up to it too then, next time I take it apart (Got a few 'upgrades' in mind).
Also, it's called a wave vessel. I remembered wrong.
Homemade Wave Tube from T.V.
Can you center the images as well.
Done and done. Anything else you think should be changed?
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