Towards Realizing the TPU

[BEP]

Why is everyone so sure the beam deflection circuits, in a TV, have anything to do with a TPU?

As I recall, SM mentions shadow masking, Earth's magnetic field, old TV sets, and much more.

A shadow mask is used in most TV set CRTs.
Decades ago it was a big problem with Earth's magnetic field effecting a CRT almost every time is was moved. The CRT had to be degaussed once the CRT was moved. This still happens but degaussing is automatic.
There was a degaussing method built right into TV sets. This would execute on power-up. The design was radically changed and re-patented with only a mention of the original patent back in the 60's.

I can imagine there would be problems with such a system if sequencing the degaussing coils did not stop before the CRT electron beam was on.

I stopped looking at the beam deflection controls a long time ago. The degaussing circuits are simple and the coil arrangements can fit the description of a TPU.

[giantkiller]

The flyback was just a reference to the open design and not in particular to the TPU. Just covering some history.

--giantkiller.

[pauldude000]

Why is everyone so sure the beam deflection circuits, in a TV, have anything to do with a TPU?

As I recall, SM mentions shadow masking, Earth's magnetic field, old TV sets, and much more.

A shadow mask is used in most TV set CRTs.
Decades ago it was a big problem with Earth's magnetic field effecting a CRT almost every time is was moved. The CRT had to be degaussed once the CRT was moved. This still happens but degaussing is automatic.
There was a degaussing method built right into TV sets. This would execute on power-up. The design was radically changed and re-patented with only a mention of the original patent back in the 60's.

I can imagine there would be problems with such a system if sequencing the degaussing coils did not stop before the CRT electron beam was on.

I stopped looking at the beam deflection controls a long time ago. The degaussing circuits are simple and the coil arrangements can fit the description of a TPU.

Like you said, the degaussing may well have been manual in the particular TV SM referenced, and even if not, it must have been off for the unit to operate. We must assume the child was killed while the unit was in operation.

That leave the initial malfunction within the deflection coils... the yoke. A degaussing coil present in the system may have contributed after the fact, but was probably not the start of the affect.

The yoke is driven by the two TV driver circuits, the vertical and horizontal circuits, which in themselves are fairly simple. (The timing circuits are complex, but the driver circuits are simple.)

Therefore, the malfunction would logically have to fall into one of two possibilities:

1. Malfunction or bad design of driver circuit(s)
2. Improper winding or initial bad design of the Yoke.

If Steven stumbled upon the TPU concept through trying to recreate the exploding TV scenario, then he would have started by using 1960's GE TV parts. He would have logically used the Yoke as a starting point, and progressed from there.

He probably would have desired a controllable uniform field shape, so started to rewind with the same general design as the yoke, but upon a symmetrically uniform toroidal form, instead of the nonlinear form used in a yoke.  He then would have achieve the field effects, which I assume to be a two vector rotation based upon his words (field rotating in two directions at once). You will notice that such rotation is impossible with just a simple two or four coil single plane coil, such as could be achieved with either the horizontal OR the vertical deflection coils if properly fed, but would require BOTH for a two vector rotation.

Coils in the same plane will only further rotation within that plane, a problem I have been wrestling with for awhile.

Here is a thought that hit me after I started this line of investigation: The TPU may be a two part unit. The field generation unit (possibly the toroid in the center), and the electrical generation unit (the external toroid). It is but a thought, give it only that much weight.

I wish SM were reading this, to check whether the logic was even close.

Paul Andrulis

[innovation_station]

the open tpu reminds me of an induction style motor that acclerates to an insaine speed .. 

hence the gyro effect .... 

and maybe a few relay coils ... 


ist!


 

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