TALE OF THE IMPLODING TV

[innovation_station]

i feel i have a constructive post...

as was explained above...  could  this be a result  of a magnetic feed back loop  with Gian   caused from the location and orientation of the flyback coil that is unshielded  and the tube that is also in close area of the flyback Fields... 

could it be  that the tube sucked up the magnetic energy and amped it

if a tube will transmitt it will also receive...  maybe the tv operates at the right freqs..   and the gain caused this effect

no?

ist

[HEYDUDE]

This site has some interesting experiments along these lines.

http://www.ussdiscovery.com/FalacoSolitonMagnetic001.htm

http://www.ussdiscovery.com/FalacoSolitonMagnetic002.htm

Perhaps disconnect the yoke from the board of the TV or monitor and drive with the stereo amp / generator combo and experiment with various modulations. With 90 degree phase shift you will get a circle drawn on the face of the CRT. Other modulations will yield spirals etc.

Drawing showing two yokes and pictures are from the Falaco site. Two yokes are not necessary, just drive the horizontal and vertical windings from channels one and two respectively.

Note that the circle shown is the very different vector scan as opposed to producing the same image using raster scan in the normal sweep systems. This is the real path of the electron beam.

Extreme care should be exercised if performing this experiment....maybe from a distance.

[sparks]

If the leaking tube is creating xrays and is ionizing air molecules with water vapor in it we start to get all sorts of ionized gas building up inside the cabinet.  The crt is up around 30kv and will have a tendency to accelerate free electrons as they are emitted from the air and or water vapor via action of the xray leakage outside of the tube.  The tube gun is creating a spiraling magnetic current already.  Now this spiraling magnetic current starts to initiate spin to the ion field accumulating around the outside of the tube.
Now this could have been going on for hours.  This spinning ionized gas with an electron current that both confines the gas and adds to it's spin is storing one shitload of energy in the space surrounding the crt.  At some point the spin field becomes so positively charged that it diverts the electron beam towards it's core.  The glass melts and the implosion of the tube screws up the ion circulation and the magnetic field this thing has been building up for hours suddenly collapses as the spinning plasma falls apart on implosion of the tube.  Maybe?

[sparks]

If the leaking tube is creating xrays and is ionizing air molecules with water vapor in it we start to get all sorts of ionized gas building up inside the cabinet.  The crt is up around 30kv and will have a tendency to accelerate free electrons as they are emitted from the air and or water vapor via action of the xray leakage outside of the tube.  The tube gun is creating a spiraling magnetic current already.  Now this spiraling magnetic current starts to initiate spin to the ion field accumulating around the outside of the tube.
Now this could have been going on for hours.  This spinning ionized gas with an electron current that both confines the gas and adds to it's spin is storing one shitload of energy in the space surrounding the crt.  At some point the spin field becomes so positively charged that it diverts the electron beam towards it's core.  The glass melts and the implosion of the tube screws up the ion circulation and the magnetic field this thing has been building up for hours suddenly collapses as the spinning plasma falls apart on implosion of the tube.  Maybe?  You be careful heydude.   Definitely get yourself a compass to checkout how big a magfield is building up.

[HEYDUDE]

From Wikipedia the following was pasted (searchword: CRT) If interested, read the whole article.

Permanent magnets (the ion trap) deflect the lighter electrons so that they strike the screen. Some very old TV sets without an ion trap show browning of the center of the screen, known as ion burn. The aluminum coating used in later CRTs reduced the need for an ion trap.

The outer glass allows the light generated by the phosphor out of the monitor, but (for color tubes) it must block dangerous X-rays generated by high energy electrons impacting the inside of the CRT face. For this reason, the glass is leaded. Color tubes require significantly higher anode voltages than monochrome tubes (as high as 32,000 volts in large tubes), partly to compensate for the blockage of some electrons by the aperture mask or grille; the amount of X-rays produced increases with voltage. Because of leaded glass, other shielding, and protective circuits designed to prevent the anode voltage from rising too high in case of malfunction, the X-ray emission of modern CRTs is well within approved safety limits.

The high voltage (EHT) used for accelerating the electrons is provided by a transformer. For CRTs used in televisions, this is usually a flyback transformer that steps up the line (horizontal) deflection supply to as much as 32,000 volts for a color tube, although monochrome tubes and specialty CRTs may operate at much lower voltages. The output of the transformer is rectified and the pulsating output voltage is smoothed by a capacitor formed by the tube itself (the accelerating anode being one plate, the glass being the dielectric, and the grounded (earthed) Aquadag coating on the outside of the tube being the other plate). Before all-glass tubes, the structure between the screen and the electron gun was made from a heavy metal cone which served as the accelerating anode. Smoothing of the EHT was then done with a high voltage capacitor, external to the tube itself. In the earliest televisions, before the invention of the flyback transformer design, a linear high-voltage supply was used; because these supplies were capable of delivering much more current at their high voltage than flyback high voltage systems â€" in the case of an accident they proved extremely dangerous. The flyback circuit design addressed this: in the case of a fault, the flyback system delivers relatively little current, improving a person's chance of surviving a direct shock from the high voltage anode.

CRTs can emit a small amount of X-ray radiation as a result of the electron beam's bombardment of the shadow mask/aperture grille and phosphors. The amount of radiation escaping the front of the monitor is widely considered unharmful.

Early color television receivers (many of which are now highly collectible, see CT-100) were especially vulnerable due to primitive high-voltage regulation systems. X-ray production is generally negligible in black-and-white sets (due to low acceleration voltage and beam current), and in virtually every color display since the late 1960s, when systems were added to shut down the horizontal deflection system (and therefore high voltage supply) should regulation of the acceleration voltage fail.

CRTs may emit low levels of beta radiation which can be detectable by sensitive Geiger counter. It does not come from accelerated electrons in the tube but from radioactive isotopes. Source of this type of radioactivity is mainly Zirconium or other isotopes sometimes used in glass or mask production.

A high vacuum exists within all CRT monitors. If the outer glass envelope is damaged, a dangerous implosion may occur. Due to the power of the implosion, glass may explode outwards. This shrapnel can travel at dangerous and potentially fatal velocities. While modern CRT used in televisions and computer displays have epoxy-bonded face-plates or other measures to prevent shattering of the envelope, CRTs removed from equipment must be handled carefully to avoid personal injury.

Note: As stated in the very first post, I tend to believe all the action took place inside the picture tube, was caused by magnetic strirring of a plasma, ignited by the electron beam and the high voltages.