Some thoughts on how the TPU might work.

[Grumpy]

I'll have to figure...

[Newton007]

I want to say, 14,000 something HZ, but not sure,
However it is a industry standard and all US made sets used this same exact horizontal sweep frequency.
In the same exact wave form. Spike with a slope. The vertical output was at 60 HZ., so this was no good for HV generation for the CRT.

But the AC line power was used to synchronize the 60 HZ vertical sweep. So if you had trash on the power lines, your set would go whacko.

The transformer is designed for just one frequency sort of like the TPU except the fly back transformer had to be dead on frequency or the set would get those strange horizontal lines.
See the one loop HV rectifier heater winding?
See the insulation?
It was at high voltage potential too.

Then the horizontal oscillator tubes would get weak the frequency would drift and the set would go out of kilter, even though you still had a picture of sorts.

However there hundreds of different designs to do the same thing usually in a effort to save costs so as time went on they, after about 1971 turned to crap TVs, not even worth repairing, the BW ones any way.

The fly back has a special iron core, design, the TPU has a air core, ahhh something?

The TPU has to be off to one side of the frequency or according to the inventor. Boom!

Newton

[Newton007]

I just went to Wickapedia and there is a whole lot of information on fly back transformers.

15734 HZ. dead on. so I was not too far off. Hey on E bay there is a fly back tester and a bunch of TV stuff. I like the web.

Newton

[Grumpy]

more winding...

[Newton007]

Grumpy,

No, I don't remember the book, sounds interesting though,
I just went to several sites.
Do a Google search on fly back transformers, there is a lot of good information. I am going to study this as it has been a very long time away from this information.
I want to look at HV rectifiers solid state units used in later fly backs after the tube era.

There are hv diode push type circuits, that push up the voltage in the coils a little at a time between coil windings with each pulse. There may be something here. Don't know.


There is much catching up here for me.

There are some sites now that have old technical electronic books 1900 to about 1970,  they have to be torn up to scan, so the book is worthless as the pages are torn out, but the information is secure stored and backed up allowing any one to read them on the web. It is great deal and they are always looking for old books. 

Good luck with your new coil.

Newton